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chalcedony

(Encyclopedia)chalcedony kălsĕdˈənē [key] [from Chalcedon], form of quartz the crystals of which are so minute that its crystalline structure cannot be seen except with the aid of a microscope. Chalcedony has ...

Sexton, Anne

(Encyclopedia)Sexton, Anne (Harvey), 1928–74, American poet, b. Newton, Mass. Educated at Garland Junior College and at Radcliffe, she worked briefly as a fashion model in Boston. Her “confessional poetry” is...

partridge

(Encyclopedia)partridge, common name applied to various henlike birds of several families. The true partridges of the Old World are members of the pheasant family (Phasianidae); the common European or Hungarian spe...

puli

(Encyclopedia)puli po͝olˈē, pyo͞oˈlē [key] (pl. pulik), a breed of wiry, medium-sized working dog developed nearly 1,000 years ago in Hungary. It stands from 16 to 18 in. (40.6–45.7 cm) high at the shoulder...

nutcracker

(Encyclopedia)nutcracker, common name for a small crow of the genus Nucifraga in the family Corvidae (crow family). The Old World nutcracker (N. caryocatactes) is found throughout the colder regions of Europe, incl...

talc

(Encyclopedia)talc, mineral ranging in color from white through various shades of gray and green to the red and brown of impure specimens, translucent to opaque, and having a greasy, soapy feel. It is a hydrous sil...

squash bug

(Encyclopedia)squash bug, name for a true bug, Anasa tristis, found throughout the United States and S Canada. It damages squash, pumpkin, and related plants by sucking the juices from leaves and stems. The adult i...

sparrow

(Encyclopedia)sparrow, common name of various small brown-and-gray perching birds. New World birds called sparrows are members of the finch family. They were named for their resemblance to the English sparrow and t...

uremia

(Encyclopedia)uremia yo͝orēˈmēə [key], condition resulting from advanced stages of kidney failure in which urea and other nitrogen-containing wastes are found in the blood. Uremia can be caused by NSAIDs (nons...

Berlin, Sir Isaiah

(Encyclopedia)Berlin, Sir Isaiah, 1909–97, English political scientist, b. Riga, Latvia (then in Russia). His family moved to St. Petersburg when he was a boy and emigrated to London in 1921. He was educated at O...