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gas mask

noun
  1. a masklike device containing or attached to a component that filters the air inhaled by the wearer through charcoal and chemicals, for protecting the face and lungs against noxious gases and fumes, as in warfare or in certain industrial processes.
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Origin of gas mask

First recorded in 1910–15
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for gas mask

Historical Examples

  • His gas-mask had been blown to atoms with Observation-Post Fourteen.

    Morale

    Murray Leinster

  • There was no use in approaching the school-house, though he had a gas-mask now.

    Morale

    Murray Leinster

  • We don't need mercury any more than a goldfish needs a gas-mask.

    Spacehounds of IPC

    Edward Elmer Smith

  • "God, I envy a man who can snore through a gas-mask," said Randolph.

  • With a gas-mask on a man is not more than fifty per cent efficient.

    Huts in Hell

    Daniel A. Poling

British Dictionary definitions for gas mask

gas mask

noun
  1. a mask fitted with a chemical filter to enable the wearer to breathe air free of poisonous or corrosive gases: used for military or industrial purposesAlso called (in Britain): respirator
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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