inhalation

noun

in·​ha·​la·​tion ˌin-hə-ˈlā-shən How to pronounce inhalation (audio)
ˌi-nə-ˈlā-
1
: the act or an instance of inhaling
2
: material (such as medication) to be taken in by inhaling
inhalational adjective

Examples of inhalation in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Factor in inhalation, and the estimate climbs to between 74,000 and 121,000 per year. Allison Palmer, Charlotte Observer, 27 Apr. 2026 When inhalation is factored in, that number climbs to between 74,000 and 121,000 particles per year. Allison Palmer, Sacbee.com, 27 Apr. 2026 To use chlorine bleach safely, wear a mask to prevent the inhalation of mold spores, eye protection, and cleaning gloves. Mary Marlowe Leverette, The Spruce, 25 Apr. 2026 That same trial found five minutes of daily steam inhalation produced real reductions in symptom burden — a hot shower works just as well for most people. Allison Palmer, Fort Worth Star-Telegram, 22 Apr. 2026 See All Example Sentences for inhalation

Word History

First Known Use

circa 1623, in the meaning defined at sense 1

Time Traveler
The first known use of inhalation was circa 1623

Browse Nearby Words

Cite this Entry

“Inhalation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/inhalation. Accessed 3 May. 2026.

Kids Definition

inhalation

noun
in·​ha·​la·​tion ˌin-(h)ə-ˈlā-shən How to pronounce inhalation (audio)
: the act or instance of inhaling

Medical Definition

inhalation

noun
in·​ha·​la·​tion ˌin-(h)ə-ˈlā-shən, ˌin-ᵊl-ˈā- How to pronounce inhalation (audio)
1
: the act or an instance of inhaling
specifically : the action of drawing air into the lungs by means of a complex of essentially reflex actions that involve changes in the diaphragm and in muscles of the abdomen and thorax which cause enlargement of the chest cavity and lungs resulting in production of relatively negative pressure within the lungs so that air flows in until the pressure is restored to equality with that of the atmosphere
2
: material (as medication) to be taken in by inhaling
inhalational adjective

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