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Pronunciation: mask


  1. Any of a variety of disease states or disorders that cause alteration or discoloration of the skin of the face.
  2. The expressionless appearance seen in association with certain diseases; Parkinson facies.
  3. A facial bandage.
  4. A shield designed to cover the mouth and nose for maintenance of antiseptic conditions.
  5. A device designed to cover the mouth and nose for administration of inhalation anesthetics, oxygen, or other gases.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.