Columbia Encyclopedia

Search results

500 results found

aquaculture

(Encyclopedia)aquaculture, the raising and harvesting of fresh- and saltwater plants and animals. The most economically important form of aquaculture is fish farming, an industry that accounts for an ever increasin...

biochemistry

(Encyclopedia)biochemistry, science concerned chiefly with the chemistry of biological processes; it attempts to utilize the tools and concepts of chemistry, particularly organic and physical chemistry, for elucida...

Haldane, John Burdon Sanderson

(Encyclopedia)Haldane, John Burdon Sanderson hôlˈdān, –dən [key], 1892–1964, British geneticist, biologist, and popularizer of science; son of John Scott Haldane. He studied at Oxford until his studies were...

diatom

(Encyclopedia)diatom dīˈətŏmˌ, –tōmˌ [key], unicellular organism of the kingdom Protista, characterized by a silica shell of often intricate and beautiful sculpturing. Most diatoms exist singly, although s...

Quantico

(Encyclopedia)Quantico, town, (2000 pop. 561), Prince William Co., NE Va., on the Potomac River, 29 mi (47 km) SSW of Washington, D.C.; inc. 1927, reinc. 1934. It is now the site of the FBI training academy, and is...

behavior

(Encyclopedia)behavior, in biology: see ethology. ...

Yerkes, Robert Mearns

(Encyclopedia)Yerkes, Robert Mearns yûrˈkēz [key], 1876–1956, American psychologist, b. Bucks co., Pa., grad. Harvard (B.A. 1898; Ph.D.1902). He taught (1902–17) at Harvard, served (1919–24) on the Nationa...

botany

(Encyclopedia)botany, science devoted to the study of plants. Botany, microbiology, and zoology together compose the science of biology. Humanity's earliest concern with plants was with their practical uses, i.e., ...

Browse by Subject