Columbia Encyclopedia

Search results

500 results found

insectivore

(Encyclopedia)insectivore ĭnsĕkˈtəvōrˌ [key], term broadly given to any insect-eating animal or plant. The term also refers to mammals of the former order Insectivora, in which was included the shrew, mole, h...

Williams, Roger John

(Encyclopedia)Williams, Roger John, 1893–1988, American chemist, b. India, grad. Univ. of Redlands, Redlands, Calif. (B.S., 1914), Ph.D. Univ. of Chicago, 1919; brother of the chemist Robert R. Williams, Jr. He t...

malnutrition

(Encyclopedia)malnutrition, insufficiency of one or more nutritional elements necessary for health and well-being. Primary malnutrition is caused by the lack of essential foodstuffs—usually vitamins, minerals, or...

wormwood

(Encyclopedia)wormwood, Mediterranean perennial herb or shrubby plant (Artemisia absinthium) of the family Asteraceae (aster family), often cultivated in gardens and found as an escape in North America. It has silv...

investiture

(Encyclopedia)investiture, in feudalism, ceremony by which an overlord transferred a fief to a vassal or by which, in ecclesiastical law, an elected cleric received the pastoral ring and staff (the symbols of spiri...

phenylketonuria

(Encyclopedia)phenylketonuria fĕnˌəlkētˌəno͝orˈēə [key] (PKU), inherited metabolic disorder caused by a deficiency in a specific enzyme (phenylalanine hydroxylase). The absence of this enzyme, a recessive...

Casimir IV

(Encyclopedia)Casimir IV, 1427–92, king of Poland (1447–92). He became (1440) ruler of Lithuania and in 1447 succeeded his brother Ladislaus III as king of Poland. He united the two nations more closely by plac...

Ryti, Risto

(Encyclopedia)Ryti, Risto rēˈstō rüˈtē [key], 1889–1956, Finnish political leader. In 1919 he was elected to the Finnish diet. He later served as minister of finance (1921–24) and as governor of the Bank ...

Porvoo

(Encyclopedia)Porvoo bôrˈgō [key], city (1996 pop. 21,313), Southern Finland prov., S central Finland, on the Gulf of Finland at the mouth of the Porvoonjoki River. It is an export center for forest products and...

Lombard League

(Encyclopedia)Lombard League, an alliance formed in 1167 among the communes of Lombardy to resist Holy Roman Emperor Frederick I when he attempted to assert his imperial authority in Lombardy. Previously the commun...