From inhale +‎ -ation.

• IPA^(key): /ˌɪnhəˈleɪʃən/, [ˌɪnɦəˈleɪʃn̩]

• Audio (US):

  (file)

• Rhymes: -eɪʃən
• Hyphenation: in‧ha‧la‧tion

inhalation (countable and uncountable, plural inhalations)

1. The act of inhaling; inbreathing.
   • 1860 May, George Cupples, “Loch-Na-Diomhair—The Lake of the Secret. A Highland Flight.”, in David Masson, editor, Macmillan’s Magazine, volume II, number 7, London: Macmillan and Co.[…], →OCLC, section I (How We Set Out for It—Ickerson and I), page 22, column 1:

     On Ickerson's part, with the help of "a few post-jentacular inhalations," as he in his colossal manner was pleased to phrase it, "from that fragrant weed which so propitiates clearness of thought, and tends to promote equanimity in action."

   • 1900, Charles W[addell] Chesnutt, chapter I, in The House Behind the Cedars, Boston, Mass.; New York, N.Y.: Houghton, Mifflin and Company[…], →OCLC:

     The girl stooped to pluck a rose, and as she bent over it, her profile was clearly outlined. She held the flower to her face with a long-drawn inhalation, then went up the steps, crossed the piazza, opened the door without knocking, and entered the house with the air of one thoroughly at home.

   • 1995, John December, quoting Craig Jackson, The World Wide Web Unleashed, 2nd edition, Indianapolis, Ind.: Sams.net, →ISBN, page 450:

     The Invisible Killer Dihydrogen monoxide is colorless, odorless, tasteless, and kills uncounted thousands of people every year. Most of these deaths are caused by accidental inhalation of DHMO, but the dangers of dihydrogen monoxide do not end there.

2. The substance (medicament) which is inhaled.

• inhale

• IPA^(key): /i.na.la.sjɔ̃/

• Audio (France (Lyon)):

  (file)

inhalation f (plural inhalations)

1. inhalation (all meanings)

• “inhalation”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012