intranasal

adjective

in·​tra·​na·​sal ˌin-trə-ˈnā-zəl How to pronounce intranasal (audio)
-(ˌ)trä-
: lying within or administered by way of the nasal structures
intranasally
ˌin-trə-ˈnā-zə-lē How to pronounce intranasal (audio)
-ˈnāz-lē
-(ˌ)trä-
adverb

Examples of intranasal 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.
If funding for human clinical trials is available, Narendran believes that a viable vaccine — which will likely be an intranasal spray or aerosol — could be ready in 3 to 7 years. Bay City News, Mercury News, 20 Feb. 2026 People can now order the intranasal flu vaccine online and use it at home. Liz Szabo, NBC news, 25 Oct. 2025 One third of the participants received a low dose of the intranasal vaccine, one third received a high dose of the vaccine and one third received a placebo. Tara Haelle, Scientific American, 23 Sep. 2025 Enbumyst, a bumetanide nasal spray developed by Corstasis Therapeutics, is the first intranasal loop diuretic to be cleared for use in the US. New Atlas, 15 Sep. 2025 See All Example Sentences for intranasal

Word History

First Known Use

1886, in the meaning defined above

Time Traveler
The first known use of intranasal was in 1886

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Cite this Entry

“Intranasal.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/intranasal. Accessed 28 Mar. 2026.

Medical Definition

intranasal

adjective
in·​tra·​na·​sal -ˈnā-zəl How to pronounce intranasal (audio)
: lying within or administered by way of the nasal structures
intranasally adverb
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