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resin

(Encyclopedia)resin, any of a class of amorphous solids or semisolids. Resins are found in nature and are chiefly of vegetable origin. They are typically light yellow to dark brown in color; tasteless; odorless or ...

Barth, Karl

(Encyclopedia)Barth, Karl bärt [key], 1886–1968, Swiss Protestant theologian, one of the leading thinkers of 20th-century Protestantism. He helped to found the Confessing Church and his thinking formed the theol...

privateering

(Encyclopedia)privateering, former usage of war permitting privately owned and operated war vessels (privateers) under commission of a belligerent government to capture enemy shipping. Private ownership distinguish...

hockey, ice

(Encyclopedia)hockey, ice, team sport in which players use sticks to propel a hard, round disk into a net-backed goal. The NHL long regarded itself as the world's elite, but the overwhelming superiority of the ...

Locke, John

(Encyclopedia)Locke, John lŏk [key], 1632–1704, English philosopher, founder of British empiricism. Locke summed up the Enlightenment in his belief in the middle class and its right to freedom of conscience and ...

check

(Encyclopedia)check or cheque, bill of exchange (see draft) drawn upon a bank or trust company or broker connected with a clearinghouse (see clearing). Upon presentation of a check, the bank or other drawee pays ca...

Euclid, Greek mathematician

(Encyclopedia)Euclid yo͞oˈklĭd [key], fl. 300 b.c., Greek mathematician. Little is known of his life other than the fact that he taught at Alexandria, being associated with the school that grew up there in the l...

humidity

(Encyclopedia)humidity, moisture content of the atmosphere, a primary element of climate. Humidity measurements include absolute humidity, the mass of water vapor per unit volume of natural air; relative humidity (...

angina pectoris

(Encyclopedia)angina pectoris ănjīˈnə pĕkˈtərĭs [key], condition characterized by chest pain that occurs when the muscles of the heart receive an insufficient supply of oxygen. This results when the arterie...

Guizot, François

(Encyclopedia)Guizot, François fräNswäˈ gēzōˈ [key], 1787–1874, French statesman and historian. The son of a Protestant family of Nîmes, he was educated at Geneva. He began a legal career in Paris in 1805...