Inhalation

From online dictionary
inhalation
ɪnhəˈleɪʃ(ə)n/
noun
noun: inhalation; plural noun: inhalations
  1. the action of inhaling or breathing in.
    “the inhalation of airborne particles”
    • MEDICINE
      the inhaling of medicines or anaesthetics in the form of a gas or vapour.
    • MEDICINE
      a preparation to be inhaled in the form of a vapour or spray.
Origin
early 17th century: from medieval Latin inhalatio(n- ), from inhalare ‘inhale’.