'Resuscitator' definitions:

Definition of 'resuscitator'

(from WordNet)
noun
A breathing apparatus used for resuscitation by forcing oxygen into the lungs of a person who has undergone asphyxia or arrest of respiration

Definition of 'Resuscitator'

From: GCIDE
  • Resuscitator \Re*sus"ci*ta`tor\, n. [L.]
  • 1. One who, or that which, resuscitates. [1913 Webster]
  • 2. Specifically: (Med.) A device which is used to force oxygen or a mixture of oxygen and other gases into the lungs of patients who are suffering from asphyxiation, to revive the patient and induce resumption of respiration. [PJC]