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medical dictionary online

Many terms frequently used in science and medicine are derived from latin words. By combining the root words with, prefixes and suffixes many of the meanings of the terms can be deciphered.

Use the following resources to better understand medical terms:

Medical Roots or Stems
Prefixes commonly used in medical terms
Suffixes commonly used in medical terms

Complete Glossary of Medical Root Words

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

calculi stones or solid lumps
calluses thick hard areas of the skin
candidiasis mild infection caused by fungus
capillaries tiny blood vessels between arteries and veins that distribute blood to the body
carcinogen a substance known to cause cancer
cardiology study and practice of treating the heart
carotid arteries major arteries in the neck that supply blood to the brain
cathartics laxatives
cecum beginning of the large intestine
cerebellum consists of the two halves of the lower brain; responsible for coordination movement and balance
cerebral hemorrhage bleeding within the brain
cerebral thrombosis blood clot in an artery that supplies blood to the brain
cerebrovascular accident stroke
cerebrum consists of the two halves of the upper brain; responsible for coordination of all voluntary movement
chemosensory disorders disorders of sense or smell/and or taste
chlorhydria too much hydrochloric acid in the stomach
cholecystitis inflamation of the gallbladder
cholecystokinin hormone released in the small intestine; causes muscles in gallbladder the colon to tighten and relax
chorea rapid, jerky dance like movement of the body
chyme thick liquid made of partially digested food and stomach juices
circulatory system pertaining to heart and blood vessels
cochlea structure in the inner ear
colectomy partial or removal of large bowel or colon
colon large intestine
colonoscopic polypectomy removal of growths using a device inserted through a colonoscope
colostrum first milk produced by the breasts during late pregnancy and for a few days after childbirth
constrict tighten; narrow
contusion bruise caused by a blow to the muscle, tendon or ligament, when blood pools around the point of injury
cornea surface that covers the front of the eye
coronary heart disease a condition in which the cororonary arteries narrow
coronary occlusion an obstruction of one of the coronary arteries that decreases flow to the heart
coronary thrombosis formation of a clot in one of the arteries that carry blood to the heart muscle
cortex outer layer of the cerebrum
crepitus grinding noise or sensation within a joint
cyanosis bluish color of the skin due to lack of oxygen
cytology study of individual cells




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