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oxygen mask

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

First recorded in 1915–20
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use oxygen mask in a sentence

British Dictionary definitions for oxygen mask

oxygen mask

noun
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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