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dissociation

(Encyclopedia)dissociation, in chemistry, separation of a substance into atoms or ions. Thermal dissociation occurs at high temperatures. For example, hydrogen molecules (H2) dissociate into atoms (H) at very high ...

animal-rights movement

(Encyclopedia)animal-rights movement, diverse individuals and groups concerned with protecting animals from perceived abuse or misuse. Supporters are specifically concerned with the use of animals for medical and c...

Anderson, Maxwell

(Encyclopedia)Anderson, Maxwell, 1888–1959, American dramatist, b. Atlantic, Pa., grad. Univ. of North Dakota, 1911. His plays, many of which are written in verse, usually concern social and moral problems. Ander...

Grand Island

(Encyclopedia)Grand Island <1> City (2020 pop. 53,131), seat of Hall co., S Nebr., on the Wood River near its junction with the Platte; settled 1857 on the Plat...

jeopardy

(Encyclopedia)jeopardy, in law, condition of a person charged with a crime and thus in danger of punishment. At common law a defendant could be exposed to jeopardy for the same offense only once; exposing a person ...

Mboya, Thomas Joseph

(Encyclopedia)Mboya, Thomas Joseph mboiˈə [key], 1930–69, Kenyan political leader. The son of a Luo farmer, he was born in the “white highlands” of Kenya and educated at Roman Catholic mission schools. Earl...

manslaughter

(Encyclopedia)manslaughter, homicide committed without justification or excuse but distinguished from murder by the absence of the element of malice aforethought. Modern criminal statutes usually divide it into deg...

accessory

(Encyclopedia)accessory, in criminal law, a person who, though not present at the commission of a crime, becomes a participator in the crime either before or after the fact of commission. An accessory before the fa...

polyhedron

(Encyclopedia)CE5 Polyhedrons polyhedron pŏlˌēhēˈdrən [key], closed solid bounded by plane faces; each face of a polyhedron is a polygon. A cube is a polyhedron bounded by six polygons (in this case squar...

sabotage

(Encyclopedia)sabotage [Fr., sabot=wooden shoe; hence, to work clumsily], form of direct action by workers against employers through obstruction of work and/or lowering of plant efficiency. Methods range from peace...