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drypoint

(Encyclopedia)drypoint, an intaglio printing process in which the lines are scratched directly into a metal plate with a needle; also, the print made from such a plate. Although it is often used in combination with...

Compton, Arthur Holly

(Encyclopedia)Compton, Arthur Holly, 1892–1962, American physicist, b. Wooster, Ohio, grad. College of Wooster (B.S., 1913), Ph.D. Princeton, 1916. He was professor and head of the department of physics at Washin...

credit, letter of

(Encyclopedia)credit, letter of, commercial instrument through which a bank or other financial institution instructs a correspondent institution to advance a specified sum of money to the bearer. The document is ca...

circuit breaker

(Encyclopedia)circuit breaker, electric device that, like a fuse, interrupts an electric current in a circuit when the current becomes too high. The advantage of a circuit breaker is that it can be reset after it h...

colchicine

(Encyclopedia)colchicine kŏlˈchəsēnˌ [key], alkaloid extracted from plants of the genus Colchicum and especially from the corms of the autumn crocus, Colchicum autumnale (see meadow saffron). The metabolic eff...

Sholokhov, Mikhail Aleksandrovich

(Encyclopedia)Sholokhov, Mikhail Aleksandrovich mēkhəyĕlˈ əlyĭksänˈdrəvĭch shôˈləkhŏf [key], 1905–84, Russian novelist. Sholokhov won international fame for an epic novel of his native land, The Sil...

short takeoff and landing aircraft

(Encyclopedia)short takeoff and landing aircraft (STOL), heavier-than-air craft, capable of rising from and descending to the ground with only a short length of runway, but incapable of doing so vertically. The pre...

Plunkett, Sir Horace Curzon

(Encyclopedia)Plunkett, Sir Horace Curzon, 1854–1932, Irish statesman and agricultural reformer. Educated in England, Plunkett spent 10 years (1879–89) in Wyoming as a cattle rancher. Returning to Ireland, he b...

salvage

(Encyclopedia)salvage, in maritime law, the compensation that the owner must pay for having his vessel or cargo saved from peril, such as shipwreck, fire, or capture by an enemy. Salvage is awarded only when the pa...

behavior therapy

(Encyclopedia)behavior therapy or behavior modification, in psychology, treatment of human behavioral disorders through the reinforcement of acceptable behavior and suppression of undesirable behavior. The techniqu...