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Medical Words N to R

Medical Words N to R   →   Definition and Meaning


Browse the below word's index to fully understand the definition and meaning of some of the medical as well as non-medical words that you may come across to on this site.

A     B     C     D     E     F     G     H     I     J     K     L     M     N     O     P     Q     R     S     T     U     V     W    X-Y-Z


N - click the word of your interest to know its definition and medical meaning

Nape    *    Naturopathy    *    Nausea    *    Neoplasm    *    Nervous System    *    Neuralgia
Neural Tube Defects (NTDs)    *    Neurasthenia    *    Neurotic    *    Neurological
Neurology    *    Neuropathy    *    Neurosis    *    Night Sweats    *    Nodule
Non-Invasive Treatment    *    Nucleus    *    Nutrient    *    Nutrition


Definition or meaning of: Nape

The nape is the back of the neck.


Definition or meaning of: Naturopathy

The naturopathy is a drugless
alternative medicine system that believes in only natural methods of healing, such as the diet, the regular exercise, the body massage, the heat, the water, the air, and the herbal remedies to treat and prevent illnesses.


Definition or meaning of: Nausea

The nausea is a symptom characterized
by gastrointestinal distress (
anxiety or discomfort) and an urge to vomit.


Definition or meaning of: Neoplasm

The neoplasm is a new and abnormal growth of tissue in some part of the body, especially as a characteristic of


Definition or meaning of: Nervous System

Nervous system is the network of nerve cells and fibers that transmits nerve impulses between parts of the body.


Definition or meaning of: Neuralgia - Neuralgic

Neuralgia is an intense burning or stabbing pain caused by irritation or damage to a nerve.

Neuralgic means of or relating to or suffering from neuralgia; example: "neuralgic pains".


Definition or meaning of: Neural Tube Defects (NTDs)

Is the health condition where an opening in the spinal cord or brain remains open from early stage in human development. The conditions is also known as spinal cord defects.


Definition or meaning of: Neurasthenia

A neurasthenia is an ill-defined medical condition characterized by physical and mental exhaustion usually accompanied with symptoms such as headache, irritability.


Definition or meaning of: Neurotic

A person suffering from a


Definition or meaning of: Neurological

Of or relating to or used in or practicing


Definition or meaning of: Neurology

The neurology is the branch of medicine or biology that deals with the structure, function, and diseases of the
nervous system.


Definition or meaning of: Neuropathy

Disease or
dysfunction of one or more
peripheral nerves, typically causing numbness or weakness.


Definition or meaning of: Neurosis

The neurosis is functional disorder in which feelings obsessional, anxiety, compulsive acts, and physical complaints without objective evidence of disease, in various degrees and patterns, dominates the personality.


Definition or meaning of: Night Sweats

Night sweats or "sleep hyperhidrosis" is the occurrence of excessive sweating when asleep.


Definition or meaning of: Nodule

A nodule is a small knot-like protuberance or mass of tissue or aggregation of cells.


Definition or meaning of: Non-Invasive Treatment

The treatment procedures not requiring the introduction of instruments into the body.


Definition or meaning of: Nucleus

The central and most important part of an object, movement, or group, forming the basis for its activity and growth.


Definition or meaning of: Nutrient

The nutrients are the substances that provide nourishment essential for growth and the maintenance of life.


Definition or meaning of: Nutrition - Poor Nutrition - Malnutrition

The nutrition is the intake of food, considered in relation to the body's
dietary needs. Good nutrition is an adequate, well balanced diet combined with regular physical activity; a cornerstone of good sound health.

Poor nutrition can lead to reduced
, increased susceptibility to disease, impaired physical and mental development, and reduced productivity.

Malnutrition is a condition that results from eating a diet in which one or more nutrients are either not enough or are too much such that the diet causes health problems.


O - click the word of your interest to know its definition and medical meaning

Obesity    *    Occiput    *    Oral or Mouth Cancer    *    Oral Hygiene    *    Orchitis    *    Organic
Organism    *    Orthodox    *    Osteomyelitis    *    Osteoarthritis    *    Osteoporosis
Osteosarcoma    *    Ovarian Cancer    *    Ovary    *   


Definition or meaning of: Obesity - Obese

Obesity is the condition of being grossly fat or

Obesity is also known as the mother of all diseases as it has been found to be the root cause of many serious and life-long diseases like diabetes mellitus, kidney stones, and
cardiovascular diseases
to name a few.

The person suffering from obesity or excessive body fat or overweight is called obese.


Definition or meaning of: Occiput - Occipital

Occiput means the back of the head or skull.

Occipital means of or relating to the occiput or to the occipital bone: an occipital fracture.


Definition or meaning of: Oral or Mouth Cancer

Oral or mouth cancer is a type of
cancer that forms in tissues of the oral cavity (the mouth) or the oropharynx (the part of the throat at the back of the mouth).


Definition or meaning of: Oral Hygiene

hygiene is the practice of keeping the mouth and teeth clean and healthy by proper brushing and flossing to prevent periodontal disease and dental caries or tooth decay.


Definition or meaning of: Orchitis

The orchitis is an inflammation of one or both of the testicles.


Definition or meaning of: Organic

Of, relating to, derived from, or characteristic of, living plant and animal constituents or products having a carbon basis.


Definition or meaning of: Organism

An individual animal, plant, or single-celled life form.


Definition and meaning of: Orthodox

The orthodox is conforming to generally approved benefits, attitudes, or modes of conduct that are generally in practice from old times. For example,
Allopathy is considered as an orthodox system of medical treatment compared to homeopathy, because Allopathy was and is being used by people from the times long before homeopathy was established.


Definition or meaning of: Osteomyelitis

The osteomyelitis is an inflammation of bone or
bone marrow, usually due to infection.


Medical meaning of: Osteoarthritis

The osteoarthritis is the condition of
chronic breakdown of cartilage in the joints; the most common form of arthritis occurring usually after middle age. It causes pain, swelling, and reduced motion in your joints. It can occur in any joint, but usually it affects your hands, knees, hip or spine. Since the inflammation in the joints results from cartilage degeneration in osteoarthritis, the condition is also known as degenerative arthritis.

Causes of osteoarthritis include:

• Being
• Getting older
• Injuring a joint

Treatment options for osteoarthritis include
exercise, medicines, and sometimes surgery.


Definition or meaning of: Osteoporosis

The osteoporosis causes bones to become weak and brittle to the extent that a fall or even mild stresses such as bending over and coughing can cause a fracture.


Definition or meaning of: Osteosarcoma

The osteosarcoma is a cancerous
of the bone.


Definition or meaning of: Ovarian Cancer

Ovarian cancer is a type of
cancer that begins in the ovaries.


Definition or meaning of: Ovary - Ovaries

A female reproductive organ in which ova or eggs are produced, present in humans and other
as a pair.

Ovaries is the plural form of ovary.


Definition or meaning of: Overweight

An overweight is the excess weight of the body that may come from muscle, bone and fat and may deliver the same goods as
obesity if not kept under control.

For adults, the overweight and obesity ranges are determined by using weight and height to calculate a number called the 'body mass index' (

BMI is used because, for most people, it correlates with their amount of body fat.


P - click the word of your interest to know its definition and medical meaning

Palpitation    *    Pancreas    *    Panencephalitis    *    Papule    *    Paralysis    *    Parasite
Parkinson's Disease    *    Parotid Gland    *    Paroxysm    *    Pathology    *    Pathy    *    Pelvis
Pericarditis    *   
Pericardium    *    Perineum    *    Periodontal    *    Periodontal Disease    *    Periodontitis
Peristeum    *    Peripheral    *    Peripheral Arterial Disease (PAD)    *    Peripheral Artery
Peritoneal Cavity    *    Pervasive    *    Pesticide    *    Pestle    *    Pharyngitis    *    Pharynx
Physical Activity    *    Photophobia    *    Phytochemical - Phytonutrient    *    Pimple    *    Pituitary Gland
Plasma    *    Platelet Disorders    *    Plaque    *   
Pneumonia    *    Poison Ivy    *    Poison Oak    *    Pollen
Pollution - Pollutant    *    Polyp    *    Polyuria    *    Potency    *    Potentization
Præcordial or Precordial - Præcordia or Precordia    *    Prostate / Prostate Gland    *    Prostration
Prostate Cancer
    *    Pruritus - Pruritic    *    Pseudoscientific    *    Psoriasis    *    Psychiatry
Psychological    *    Psychosis    *    Public Health    *    Pulsate - Pulsation - Pulsative
Punctured Wound    *    Pustule - Pustular    *    Pyrosis    *    Pyorrhea


Definition or meaning of: Palpitation

The palpitation is a noticeably rapid, strong, or irregular heartbeat due to agitation, exertion, or illness.


Definition or meaning of: Pancreas - Pancreatitis

A gland, situated near the stomach, that secrets the digestive
enzymes into the small intestine.

Pancreatitis is swelling or inflammation of the pancreas.


Definition or meaning of: Panencephalitis

The Panencephalitis means diffuse inflammation of the entire brain.


Definition or meaning of: Papule

A small, solid, usually inflammatory elevation of the skin that does not contain pus.


Definition or meaning of: Paralysis - Paralytic - Paralyzed

Paralysis is the complete or partial loss of function especially when involving the motion or sensation in a part of the body; loss of ability to move; a state of powerlessness or incapacity of a part of the body to act.

Paralytic means of or relating to paralysis.

Paralyzed means affected with paralysis.


Definition or meaning of: Parasite - Parasitic

Parasite is an 
organism that grows, feeds, and is sheltered on or in a different organism while contributing nothing to the survival of its host.

Parasitic means of, relating to, characteristic of, or caused by a parasite. Living (of an organism) as a parasite.


Definition or meaning of: Parkinson's Disease

Is a progressive movement disease marked by tremors, rigidity, slow movements, and posture-instability.


Definition or meaning of: Parotid Gland

Parotid gland is either of a pair of large 
salivary glands situated just in front of each ear.


Definition or meaning of: Paroxysm

A sudden attack or violent expression of a particular emotion or activity.


Definition or meaning of: Pathology - Pathological

The study of the essential nature of diseases and particularly of the structural and functional changes produced by them.

Pathological means: Of or relating to pathology.


Definition or meaning of: Pathy

Pathy is a system of treating disease, for examp
Allopathyhomeopathy, or naturopathy.


Definition or meaning of: Pelvis - Pelvic

1. The large bony structure near the base of the spine to which the hind limbs or legs are attached in humans and many other 

2. The broadened top part of the 
ureter into which the kidney tubules drain.

Pelvic : Of, relating to, or situated within the bony pelvis.


Definition or meaning of: Pericarditis - Pericardium

Pericarditis is an inflammation of the two layers of the skin, sac-like 
membrane that surrounds the heart.

This membrane is called the Pericardium.


Definition or meaning of: Perineum

The perineum is the area between the
anus and the male genital organ 'scrotum' or female genital organ 'vulva'.


Definition or meaning of: Periodontal

Investing or surrounding a tooth.


Definition or meaning of: Periodontal Disease

Periodontal disease is an inflammatory disease that affects the soft and hard structures that support the teeth. In its early stage, called
gingivitis, the gums become swollen and red due to inflammation, which is the body's natural response to the presence of harmful bacteria.


Definition or meaning of: Periodontitis

Inflammation of the tissue around the teeth, often causing shrinkage of the gums and loosening of the teeth.

Periodontitis and all
periodontal diseases are the bacterial infections that destroy the attachment fibers and supporting bone that hold the teeth in the mouth. If left untreated, these diseases can lead to tooth loss.


Definition or meaning of: Periosteum

The periosteum is a dense layer of vascular connective tissue enveloping the bones except at the surfaces of the joints.


Definition or meaning of: Peripheral

Of, relating to, or situated on the edge or periphery of something.


Definition or meaning of: Peripheral Arterial Disease (PAD)

Peripheral arterial disease (PAD) is a common 
circulatory problem in which narrowed arteries reduce blood flow to the limbs.


Definition and meaning of: Peripheral Artery

peripheral artery disease is a common circulatory problem in which narrowed arteries reduce blood flow to the limbs of the body.


Definition and meaning of: Peritoneal Cavity

The peritoneal cavity is a potential space between the parietal peritoneum and visceral peritoneum, that is, the two 
membranes that separate the organs in the abdominal cavity from the abdominal wall.


Definition and  meaning of: Pervasive

The pervasive is to spreading or spread throughout.


Definition and meaning of: Pesticide

The substances meant for attracting, seducing, destroying, or mitigating any pest.


Definition and meaning of: Pestle

A heavy tool, used for crushing and grinding substances, such as spices, or drugs, usually in a mortar.


Definition or meaning of: Pharyngitis

The pharyngitis is an inflammation of the throat.


Definition or meaning of: Pharynx - Pharyngeal

membrane-lined cavity behind the nose and mouth, connecting them to the esophagus.

Pharyngeal means: of, relating to, located in, or coming from the pharynx.


Definition or meaning of: Photophobia

The photophobia is a symptom abnormal intolerance to visual perception of light.


Definition or meaning of: Phytochemical - Phytonutrient

Phytochemicals are naturally occurring chemicals produced by plants. Phytochemicals are often extracted from plants, processed and sold as
dietary supplements.

Also called phytonutrient.


Definition or meaning of: Pimple - Pimpled or Pimply

Pimple means a small inflamed elevation of the skin;  papule or 
pustule, common symptom in acne.

Pimpled or pimply means having 


Definition or meaning of: Pituitary Gland

The major 
endocrine gland. A pea-sized body attached to the base of the brain, the pituitary is important in controlling growth and development and the functioning of the other endocrine glands. Also called hypophysis, pituitary body.


Definition or meaning of: Plasma

The plasma is the clear yellowish fluid portion of blood or lymph in which the red blood cells, 
white blood cells, and 
platelets are suspended.


Definition or meaning of: Platelets - Platelet Disorders/Problems

Platelet is a blood-element that assists in blood clotting. Your 
bone marrow makes platelets.

Platelet problems or disorders can result from having too few or too many platelets, or from platelets that do not work properly.

If your blood has a low number of platelets, you can be at risk for mild to serious bleeding. Too many platelets indicate a higher risk of blood-clots. With other platelet disorders, the platelets do not work as they should. In
von Willebrand Disease, the platelets cannot stick together or cannot attach to blood vessel walls. This can cause excessive bleeding.


Definition or meaning of: Plaque

The plaque is a sticky substance made up of fat, 
cholesterol, calcium, and other substances found in the blood.


Definition or meaning of: Pneumonia

The pneumonia is lung inflammation caused by 
bacterial or viral infection, in which the air sacs fill with pus and may become solid. Inflammation may affect both lungs (double pneumonia), one lung (single pneumonia), or only certain lobes (lobar pneumonia).


Definition or meaning of: Poison Ivy - Poison Oak

Poison Ivy is climbing plant of the cashew family that is especially common in in the eastern and central north America, that has ternate leaves, greenish flowers, and white berries, and that produces an 
acutely irritating oil causing intensely itching skin 

Poison Oak is a North American climbing shrub of the cashew family, closely related to poison ivy and having similar properties.


Definition or meaning of: Poison Oak

Poison Oak is a North American climbing shrub of the cashew family, closely related to poison ivy and having similar properties.


Definition or meaning of: Pollen

The pollen is the fertilizing element of flowering plants, consisting of fine, powdery, yellowish grains or spores.


Definition or meaning of: Pollution - Polluted - Pollutant

Pollution is the introduction of 
contaminants into the environment.

Polluted means affected with pollution.

Pollutants are the components of pollution, which can be either foreign substances/energies or naturally occurring contaminants.


Definition or meaning of: Polyp - Polypi - Polypus

Polyp: A small growth, typically benign (
non-cancerous) and with a stalk, protruding from a mucous membrane.

Polypi: Plural form of polypus.

Polypus: Technical term for polyp.


Definition or meaning of: Polyuria

Production of abnormally large volumes of dilute urine.


Definition or meaning of: Potency

The potency is the power of something to affect the mind or body.


Definition or meaning of: Potentization

homeopathy, the process of making a remedy more potent by serial dilution (even to extent that it is unlikely to contain a single molecule of the original substance) and succussion, is called potentization.


Definition or meaning of: Præcordial Or Precordial - Præcordia Or Precordia

• Præcordial or precordial means situated in front of the heart.
• Præcordia or precordia means the
epigastrium and anterior surface of the lower part of the thorax


Definition or meaning of: Prostate - Prostatic Hyperplasia - Prostatitis

Prostate, also called prostate gland, is a gland in male mammals that surrounds the neck of the
 bladder and
urethra and secrets a liquid constituent of the semen.

Prostatic Hyperplasia: Enlarged prostate; appears to be part of aging process.

Prostatitis: Inflammation of the prostate gland.


Definition or meaning of: Prostration

The prostration is an abrupt failure of function or complete physical exhaustion.


Definition or meaning of: Prostate Cancer

Prostate cancer is a type of 
cancer that forms in tissues of the prostate. Prostate cancer usually occurs in older men.


Definition or meaning of: Pruritus - Pruritic

An intense itching sensation that can have various causes (as by 
allergies or infection or 
jaundice etc.).


Definition or meaning of: Pseudoscientific

The pseudoscientific is a theory, methodology, or practice that is considered to be without scientific foundation.


Definition or meaning of: Psoriasis

The psoriasis is a skin disease marked by red, itchy, scaly patches.


Definition and meaning of: Psychiatry

The psychiatry is the branch of medicine that deals of mental, emotional, or abnormal behavioral disorders,
using both medical and
psychological therapies.


Definition and meaning of: Psychological - Psychology - Psychologist

Psychological : of, affecting, or arising in the mind; a 
therapy related to the assessment and treatment of mental and emotional health of a person, called psychology.

Psychologist is an expert or specialist in psychology.


Definition and meaning of: Psychosis

A severe mental disorder in which thoughts and emotions are so impaired that contact is lost with external reality.


Definition and meaning of: Public Health

Public health is the art and science dealing with protection and improvement of community health by organized community efforts, including preventive medicine, sanitary, and social science.


Definition or meaning of: Pulsate - Pulsating - Pulsation - Pulsative

Pulsate: To expand and contract rhythmically; beat; quiver; vibrate, throb.

Pulsating: Expanding and contracting rhythmically; beating; quivering; vibrating; throbbing.

Pulsation: Rhythmical throbbing, beating, or vibrating; a single beat or throb.

Pulsative: Beating; throbbing.


Definition or meaning of: Punctured Wound

A wound in which the opening is relatively small compared to the depth, as produced by a narrow pointed object.


Definition or meaning of: Pustule - Pustular

Pustule: A pustule is a small 
blister or pimple on the skin containing pus.

Pustular: Of, relating to, or resembling pustules.


Definition or meaning of: Pyrosis

The Pyrosis is another term for 


Definition or meaning of: Pyorrhea - Pyorrhea Alveolaris

Another term for periodontitis.


Q - click the word of your interest to know its definition and medical meaning



R - click the word of your interest to know its definition and medical meaning

Rash    *    Rectal    *    Rectal Cancer    *    Rectum    *    Relaxation Method
Rheumatism    *    Rheumatic / Rheumatoid Arthritis    *     Rickets
Ringworm    *   
Rosacea    *   


Definition or meaning of: Rash

A rash is a skin 


Definition or meaning of: Rectal

Of, relating to, or affecting the 


Definition or meaning of: Rectal Cancer

Rectal cancer is a type of 
cancer that forms in the tissues of the rectum (the last several inches of the large intestine closest to the anus).


Definition or meaning of: Rectum

The rectum is the last section of the digestive tract, extending from the 
colon to the 
anus, in which feces (waste substances) is stored for elimination from the body.


Definition or meaning of: Relaxation Method

Any method, process, procedure, or activity that helps a person to relax; to attain a state of increased calmness; or otherwise reduce levels of
 anxiety, stress, or anger. All relaxation techniques combine breathing more deeply with relaxing the muscles.


Definition or meaning of: Rheumatism - Rheumatic - Rheumatoid

Any of various conditions characterized by inflammation or pain in muscles, joints, or fibrous tissues.

Rheumatic means the one who is affected or suffering from rheumatism.

Rheumatoid means relating to, affected by, or resembling rheumatism.


Definition or meaning of: Rheumatic / Rheumatoid Arthritis

Rheumatic or Rheumatoid arthritis is a 
chronic progressive disease causing inflammation in the joints and resulting in painful deformity and immobility, especially in fingers, wrists, feet, and ankles.


Definition or meaning of: Rickets

The rickets is a disease of infants and children that disturbs normal bone formation, leading to failure to mineralize bones,
typically resulting in
bow legs.


Definition and meaning of: Ringworm

The ringworm refers to any of a number of 
contagious skin diseases caused by several related fungi, characterized by ring-shaped, scaly, itchy patches on the skin and generally classified  by its location on the body. It is also called tinea.


Definition or meaning of: Rosacea

The rosacea is a condition in which certain facial blood vessels enlarge, giving the cheeks and nose a flushed appearance.


Definition or meaning of: Rubella

The rubella is a highly 
contagious viral disease, spread through contact with discharges from the nose and throat of an infected person. Although rubella causes only mild symptoms of low fever, swollen glands, joint pain, and a fine red 
rash in most children and adults, it can have severe complications for women during early pregnancy resulting in severe birth defects or death of the fetus.

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