Columbia Encyclopedia

Search results

500 results found

diabetes

(Encyclopedia)diabetes or diabetes mellitus məlīˈtəs [key], chronic disorder of glucose (sugar) metabolism caused by inadequate production or use of insulin, a hormone produced in specialized cells (beta cells ...

sewage treatment

(Encyclopedia)sewage treatment: see septic tank; sewerage. ...

coma, in medicine

(Encyclopedia)coma, in medicine, deep state of unconsciousness from which a person cannot be aroused even by painful stimuli. The patient cannot speak and does not respond to command. Coma is the result of damage t...

antidiabetic drug

(Encyclopedia)antidiabetic drug, any of several drugs that control blood sugar level in the treatment of diabetes. See insulin. ...

gangrene

(Encyclopedia)gangrene, local death of body tissue. Dry gangrene, the most common form, follows a disturbance of the blood supply to the tissues, e.g., in diabetes, arteriosclerosis, thrombosis, or destruction of t...

Murphy, William Parry

(Encyclopedia)Murphy, William Parry, 1892–1987, American physician, b. Stoughton, Wis., M.D. Harvard, 1920. He taught at Harvard from 1923 and was associated with the Peter Bent Brigham Hospital, in Boston, from ...

convulsion

(Encyclopedia)convulsion, sudden, violent, involuntary contraction of the muscles of the body, often accompanied by loss of consciousness. It is not known what causes the abnormal impulses from the brain that resul...

halitosis

(Encyclopedia)halitosis hălˌĭtōˈsĭs [key], unpleasant odor carried on the breath. It is usually the result of gum disorder, tooth decay, smoking, indulgence in aromatic foods, or a mild digestive upset. Known...

Best, Charles Herbert

(Encyclopedia)Best, Charles Herbert, 1899–1978, Canadian physiologist, b. West Pembroke, Maine. With F. G. Banting and J. R. R. Macleod he discovered (1921) the use of insulin in the treatment of diabetes. He was...

thrush , in medicine

(Encyclopedia)thrush, in medicine, infection caused by the fungus Candida albicans, manifested by white, slightly raised patches on the mucous membrane of the tongue, mouth, and throat. The mucous membrane beneath ...