[in-huh-ley-shuh n] /ˌɪn həˈleɪ ʃən/
an act or instance of .
the act of inhaling; breathing in of air or other vapours
an inhalant formulation
1620s, noun of action from past participle stem of Latin inhalare (see inhale).
inhalation in·ha·la·tion (ĭn’hə-lā’shən)
The act of taking in breath. Inhalation results from the negative pressure in the lungs caused by contraction of the diaphragm, which causes it to move downwards and to expand the chest cavity. The resulting flow of air into the lungs restores a pressure equal to that of the atmosphere. Also called inspiration. Compare exhalation.
- Inhalation analgesia
inhalation analgesia n. Loss of the sense of pain due to the inhalation of a vapor or gas that depresses the central nervous system, as nitrous oxide.
- Inhalation anesthesia
inhalation anesthesia n. General anesthesia resulting from breathing of anesthetic gases or vapors.
- Inhalation anesthetic
inhalation anesthetic n. A gas or a vaporous liquid that produces general anesthesia when breathed.
- Inhalation therapy
inhalation therapy n. The therapeutic use of gases or of aerosols by inhalation.