Columbia Encyclopedia

Search results

500 results found

breeding

(Encyclopedia)breeding, in agriculture and animal husbandry, propagation of plants and animals by sexual reproduction; usually based on selection of parents with desirable traits to produce improved progeny. In con...

naturalization

(Encyclopedia)naturalization, official act by which a person is made a national of a country other than his or her native one. In some countries naturalized persons do not necessarily become citizens but may merely...

home schooling

(Encyclopedia)home schooling, the practice of teaching children in the home as an alternative to attending public or private elementary or high school. In most cases, one or both of the children's parents serve as ...

hunting

(Encyclopedia)hunting, act of seeking, following, and killing wild animals for consumption or display. It differs from fishing in that it involves only land animals. Hunting was a necessary activity of early humans...

Lenz's law

(Encyclopedia)Lenz's law, physical law, discovered by the German scientist H. F. E. Lenz in 1834, that states that the electromotive force (emf) induced in a conductor moving perpendicular to a magnetic field tends...

Ludlow, Roger

(Encyclopedia)Ludlow, Roger, b. 1590, d. after 1664, one of the founders of Connecticut, b. England. Educated at Oxford and admitted to the Inner Temple to study law, he was elected (1630) an assistant of the Massa...

Sancroft, William

(Encyclopedia)Sancroft, William săngˈkrôft [key], 1617–93, English prelate, archbishop of Canterbury. His opposition to Calvinist doctrine caused him to remain abroad during the latter part of the Commonwealth...

second

(Encyclopedia)second, abbr. sec or s, fundamental unit of time in all systems of measurement. In practical terms, the second is 1/60 of a minute, 1/3,600 of an hour, or 1/86,400 of a day. Since the length of the da...

creole language

(Encyclopedia)creole language krēōlˈ [key], any language that began as a pidgin but was later adopted as the mother tongue by a people in place of the original mother tongue or tongues. Examples are the Gullah o...

Clark, Tom Campbell

(Encyclopedia)Clark, Tom Campbell, 1899–1977, U.S. attorney general (1945–49), associate justice of the U.S. Supreme Court (1949–67), b. Dallas, Tex.; father of Ramsey Clark. He received his law degree from t...