burning glass(redirected from Burning-glass)
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a convex lens for concentrating the sun's rays into a small area to produce heat or fire
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
burning glass[′bər·niŋ ‚glas]
A converging lens used to produce intense heat by converging the rays of the sun on a small area.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.