Medical Device
mask Audio
mask [ mask, mahsk ]
Definitions related to masks:
  • A flexible, form-shaped component designed to be placed over the nose and/or mouth.
    U.S. FDA Glossary
    U.S. Food & Drug Administration, 2021
  • A protective covering worn over the face, or an apparatus for administering anesthesia or oxygen through the nose or mouth.
    NCI
    U.S. National Cancer Institute, 2021
  • Devices that cover the nose and mouth to maintain aseptic conditions often for the prevention of the spread of infections (e.g. COVID19) or to administer inhaled anesthetics or other gases.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
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