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right whale

(Encyclopedia)right whale, name for whales of the family Balaenidae. They were so named by whalers, who for centuries considered them “the right whales” to hunt, because they float when killed and because they ...

panda

(Encyclopedia)panda, name for two unrelated nocturnal Asian mammals of the order Carnivora, red pandas, genus Ailurus, and the giant panda, Ailuropoda melanoleuca. Red pandas, also known as lesser pandas and cat be...

vulture

(Encyclopedia)vulture, common name for large birds of prey of temperate and tropical regions. The Old World vultures (family Accipitridae) are allied to hawks and eagles; the more ancient American vultures and cond...

blackbody

(Encyclopedia)blackbody, in physics, an ideal black substance that absorbs all and reflects none of the radiant energy falling on it. Lampblack, or powdered carbon, which reflects less than 2% of the radiation fall...

Lead, city, United States

(Encyclopedia)Lead lēd [key], city (1990 pop. 3,632), Lawrence co., W S.Dak., in the Black Hills; laid out 1876 after the discovery of gold there, inc. 1890. It is the site of the famous Homestake Mine, which was ...

Damascus ware

(Encyclopedia)Damascus ware, early siliceous-glazed semiporcelain produced in Damascus. The most common decoration is in blue and black. However, purple, sage green, and, rarely, a red can be found. Made mainly in ...

crowberry

(Encyclopedia)crowberry, evergreen alpine and arctic shrub of the genus Empetrum (or, sometimes, other related species), bearing black, red, or purple berrylike fruits. Some are cultivated in rock gardens. Crowberr...

Symplegades

(Encyclopedia)Symplegades sĭmplĕgˈədēz [key], in Greek mythology, two floating cliffs that swung together and crushed anything going between them until Jason's ship, the Argo, passed safely through them. They ...

sharecropping

(Encyclopedia)sharecropping, an agricultural system in which a landowner allows a tenant to use their land in return for a share of the crop produced. In the United S...

color

(Encyclopedia)color, effect produced on the eye and its associated nerves by light waves of different wavelength or frequency. Light transmitted from an object to the eye stimulates the different color cones of the...