mask
1mask
noun \ˈmask\Definition of MASK
1
: a protective covering for the face
2
a : any of various devices that cover the mouth and nose and are used to prevent inhalation of dangerous substances, to facilitate delivery of a gas (as oxygen or a general anesthetic), or to prevent the dispersal of exhaled infective material—see gas mask, oxygen mask
3
: a cosmetic preparation for the skin of the face that produces a tightening effect as it dries
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