Columbia Encyclopedia

Search results

500 results found

parasite

(Encyclopedia)parasite, plant or animal that at some stage of its existence obtains its nourishment from another living organism called the host. Parasites may or may not harm the host, but they never benefit it. T...

Chevreul, Michel Eugène

(Encyclopedia)Chevreul, Michel Eugène mēshĕlˈ özhĕnˈ shəvrölˈ [key], 1786–1889, French chemist. He studied under L. N. Vauquelin, was director of the Gobelin tapestry works, and from 1830 was professor,...

Hesdin, Jacquemart de

(Encyclopedia)Hesdin, Jacquemart de zhäkmärˈ də ādăNˈ [key], fl. c.1384–1411, Franco-Flemish manuscript illuminator. Jacquemart illustrated numerous books of hours, including a number of manuscripts for Je...

gooseflesh

(Encyclopedia)gooseflesh, temporary rumpling of the skin into tiny bumps, also called goose bumps and goose pimples, and technically known as cutis ansirina. In response to cold or certain emotional states, such as...

Mayer, Julius Robert von

(Encyclopedia)Mayer, Julius Robert von, 1814–78, German physician and physicist, studied medicine at Tübingen, Munich, and Paris. From a consideration of the generation of animal heat, he was led to determine th...

Lupercalia

(Encyclopedia)Lupercalia lo͞opərkālˈyə [key], ancient Roman festival held annually on Feb. 15. The ceremony of the festival was intended to secure fertility and keep out evil. Two male youths, clad in animal s...

kitchen midden

(Encyclopedia)kitchen midden, refuse heap left by a prehistoric settlement; more specifically, a deposit consisting primarily of discarded shell and related cultural material in coastal environments. First studied ...

Virgin Islands National Park

(Encyclopedia)Virgin Islands National Park, 14,689 acres (5,949 hectares), St. John, Virgin Islands; est. 1956. The park, with beaches, coves, and headlands, is rich in tropical-plant, animal, and marine life. Bord...

Thayer, Abbott Handerson

(Encyclopedia)Thayer, Abbott Handerson thâr [key], 1849–1921, American painter, b. Boston, studied in Paris with Gérôme and at the École des Beaux-Arts. Known as a painter of animals and of landscapes, he was...

radioimmunoassay

(Encyclopedia)radioimmunoassay (RIA), highly sensitive laboratory technique used to measure minute amounts of substances including antigens, hormones, and drugs present in the body. The substance or antigen (a fore...