Columbia Encyclopedia

Search results

403 results found

Cayenne

(Encyclopedia)Cayenne kīĕnˈ, kāĕnˈ [key], city and district (2021 est. pop. 61,550), capital of French Guiana, on Cayenne isl...

pulse, in anatomy

(Encyclopedia)pulse, alternate expansion and contraction of artery walls as heart action varies blood volume within the arteries. Artery walls are elastic. Hence they become distended by increased blood volume duri...

Dausset, Jean

(Encyclopedia)Dausset, Jean zhäN dōsĕˈ [key], 1916–2009, French immunologist. A physician specializing in blood diseases, he was the laboratory director of the National Blood Transfusion Center (1946–63) an...

encephalitis

(Encyclopedia)encephalitis ĕnsĕfˌəlīˈtəs [key], general term used to describe a diffuse inflammation of the brain and spinal cord, usually of viral origin, often transmitted by mosquitoes, in contrast to a b...

leishmaniasis

(Encyclopedia)leishmaniasis lēshˌmənīˈəsĭs [key], any of a group of tropical diseases caused by parasitic protozoans of the genus Leishmania. The parasites live in dogs, foxes, rodents, and humans; they are ...

Vavilov, Nikolai Ivanovich

(Encyclopedia)Vavilov, Nikolai Ivanovich nyĭkəlīˈ ēväˈnəvĭch vəvēˈləf [key], 1887–1943?, Russian botanist and geneticist. He is reported to have died in a Soviet concentration camp after losing polit...

drug resistance

(Encyclopedia)drug resistance, condition in which infecting bacteria can resist the destructive effects of drugs such as antibiotics and sulfa drugs. Drug resistance has become a serious public health problem, sinc...

anabolic steroid

(Encyclopedia)anabolic steroid ănˌdrōjĕnˈĭk [key], any of a group of synthetic derivatives of testosterone that promote muscle and bone growth. Used to treat uncontrolled weight loss in wasting diseases, anab...

mountain laurel

(Encyclopedia)mountain laurel, evergreen shrub (Kalmia latifolia) of the family Ericaceae (heath family), closely related to the rhododendron and native to E North America. The state flower of Connecticut and Penns...

paraplegia

(Encyclopedia)paraplegia pârˌəplēˈjēə [key], paralysis of the lower part of the body, commonly affecting both legs and often internal organs below the waist. When both legs and arms are affected, the conditi...