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curfew

(Encyclopedia) curfew [O.Fr.,=cover fire], originally a signal, such as the ringing of a bell, to damp the fire, extinguish all lights in the dwelling, and retire for the night. The custom originated…

ahimsa

(Encyclopedia) ahimsaahimsaəhĭmˈsä [key] [Sanskrit,=noninjury], ethical principle of noninjury to both men and animals, common to Buddhism, Jainism, and Hinduism. Ahimsa became influential in India…

brown recluse spider

(Encyclopedia) brown recluse spider or violin spider, poisonous nocturnal spider, Loxoceles reclusa, most common in the SE and S central United States. Adults are 3&fslsh;8 in. (10 mm) long and…

Tizard, Sir Henry Thomas

(Encyclopedia) Tizard, Sir Henry Thomas, 1885–1959, English physical chemist and scientific adviser. He was educated at Westminster school and Magdalen College, Oxford, from which he received honors…

Blackheath

(Encyclopedia) Blackheath, common, 267 acres (108 hectares) in Lewisham and Greenwich boroughs, London, England. It was the gathering place of highwaymen and of several martial groups, including the…

bluestone

(Encyclopedia) bluestone, common name for the blue, crystalline heptahydrate of cupric sulfate called chalcanthite, a minor ore of copper. It also refers to a fine-grained, light to dark colored blue…

stromatolite

(Encyclopedia) stromatolite, layered structures produced by the binding together of sediments by a thin layer of cyanobacteria. The layers, which are deposited very slowly, gradually produce rounded…

milkweed

(Encyclopedia) milkweed, common name for members of the Asclepiadaceae, a family of mostly perennial herbs and shrubs characterized by milky sap, a tuft of silky hairs attached to the seed (for wind…

asceticism

(Encyclopedia) asceticismasceticisməsĕtˈĭsĭzəm [key], rejection of bodily pleasures through sustained self-denial and self-mortification, with the objective of strengthening spiritual life.…

lionfish

(Encyclopedia) lionfish, common name for a genus (Pterois) of the family Scorpaenidae (see rockfish), comprising venomous subtropical marine fish native to the South Pacific, the Indian Ocean, and…