Main Entry: ¹mask

Pronunciation: \ˈmask\

Function: noun

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