from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A convex lens used to focus the sun's rays and produce heat, especially for ignition.
  • noun Eyeglasses with tinted or polarizing lenses to protect the eyes from the sun's glare.

from The Century Dictionary.

  • noun Same as shade-glass; a screen of colored glass attached to a sextant to diminish the apparent brightness of the sun.
  • noun A burning-glass.

from the GNU version of the Collaborative International Dictionary of English.

  • noun A convex lens of glass for producing heat by converging the sun's rays into a focus.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun Singular form of sunglasses; used chiefly in compounds

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun a convex lens that focuses the rays of the sun; used to start a fire


Sorry, no etymologies found.



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