Try Our Apps


What is the origin of "February"?

burning glass

a converging lens used to produce heat or ignite substances by focusing the sun's rays.
Also called sunglass.
Origin of burning glass
1560-70 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2016.
Cite This Source
Examples from the Web for burning-glass
Historical Examples
  • The burning-glass concentrating the sun's rays on the red precipitate, being Priestley's original experiment.

    The Boy's Playbook of Science John Henry Pepper
  • He also gives descriptions of the camera obscura and of the burning-glass.

    Stories of Invention Edward E. Hale
  • You can see how this is done with an ordinary magnifying glass, or burning-glass.

    A Handbook of Health Woods Hutchinson
  • It was a magnificent day, the sun dazzled, and the bay sparkled like a burning-glass.

    The White Scalper Gustave Aimard
  • It was on that day that things began to come to a focus, a burning-glass of events that seemed to center on me.

    The Man in Lower Ten Mary Roberts Rinehart
  • A burning-glass had been fastened to the crucifix, and with that he had destroyed the idol.

  • Try the experiment of concentrating on a thermoscope, by means of a burning-glass, the moon's rays.

  • In China the burning-glass was widely used not very long ago.

  • Out of the saucepan shot a ball of fire like a flash of lightning; the next minute the burning-glass ceased to work.

    Black Diamonds Mr Jkai
  • The Duke's burning-glass was the instrument used to apply heat to the diamond.

    Six Lectures on Light John Tyndall
British Dictionary definitions for burning-glass

burning glass

a convex lens for concentrating the sun's rays into a small area to produce heat or fire
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source

Word of the Day

Difficulty index for burning glass

Few English speakers likely know this word

Word Value for burning

Scrabble Words With Friends

Nearby words for burning-glass