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oxygen mask

noun

  1. a masklike device placed or worn over the nose and mouth when inhaling supplementary oxygen from an attached tank.


oxygen mask

noun

  1. a device, worn over the nose and mouth, to which oxygen is supplied from a cylinder or other source: used to aid breathing
“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


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Word History and Origins

Origin of oxygen mask1

First recorded in 1915–20

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