Black-heat
noun
heat emitted by an electric element made from low-resistance thick wire that does not glow red
Historical Examples
Special Report on Diseases of the Horse United States Department of Agriculture
Thomas Wingfold, Curate George MacDonald
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a very potent and addictive form of heroin that is dark-colored.
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a group of mountains in W South Dakota and NE Wyoming. Highest peak, Harney Peak, 7242 feet (2205 meters). plural noun a group of mountains in W South Dakota and NE Wyoming: famous for the gigantic sculptures of US presidents on the side of Mount Rushmore. Highest peak: Harney Peak, 2207 m (7242 ft) Note: […]
- Black-hole
Astronomy. a theoretical massive object, formed at the beginning of the universe or by the gravitational collapse of a star exploding as a supernova, whose gravitational field is so intense that no electromagnetic radiation can escape. Also called Black Hole of Calcutta. a small prison cell in Fort William, Calcutta, in which, in 1756, Indians […]
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Also called Black Hole of Calcutta. a small prison cell in Fort William, Calcutta, in which, in 1756, Indians are said to have imprisoned 146 Europeans, only 23 of whom were alive the following morning. (lowercase) any usually wretched place of imprisonment or confinement. noun an object in space so dense that its escape velocity […]
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noun a hairy unpleasant-smelling chiefly Mediterranean plant, Ballota nigra, having clusters of purple flowers: family Lamiaceae (labiates)