in·​tra·​na·​sal | \ ˌin-trə-ˈnā-zəl How to pronounce intranasal (audio) , -(ˌ)trä- \

Definition of intranasal

: lying within or administered by way of the nasal structures

Other Words from intranasal

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 A month after the booster, researchers challenged the mice with an intranasal BA.5 exposure. Beth Mole, Ars Technica, 14 Sep. 2022 Many experts say that without funding, intranasal vaccines may remain nothing more than a promising idea. Ryan Cross,, 10 Aug. 2022 The University of Oxford is now testing intranasal vaccination in a phase 1 trial, which will assess the safety of the vaccine in a small number of people. Marla Broadfoot, Scientific American, 3 May 2022 If used properly, this research could create an important tool in Covid-19 research for testing intranasal vaccines, a universal coronavirus vaccine, and new antiviral therapies. Josh Morrison, STAT, 13 Feb. 2022 In India, Bharat Biotech is also testing an intranasal vaccine. Carolyn Y. Johnson, Anchorage Daily News, 11 Apr. 2022 Two strains of intranasal LAIV DelNS1-RBD were derived from surface protein sequences of corresponding H1N1 and H3N2 influenza subtypes: LAIV-CA4-RBD and LAIV-HK68-RBD. William A. Haseltine, Forbes, 31 Jan. 2022 An intranasal vaccine could do this by stimulating the immune system in the mucus of our noses. Megha Satyanarayana, Scientific American, 17 Feb. 2022 An intranasal booster induced immune memory cells and antibodies in the nose and throat, and strengthened protection from the initial vaccination, the researchers reported. Apoorva Mandavilli, New York Times, 2 Feb. 2022 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'intranasal.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of intranasal

1886, in the meaning defined above

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The first known use of intranasal was in 1886

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Last Updated

26 Sep 2022

Cite this Entry

“Intranasal.” Dictionary, Merriam-Webster, Accessed 30 Sep. 2022.

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More Definitions for intranasal


in·​tra·​na·​sal | \ -ˈnā-zəl How to pronounce intranasal (audio) \

Medical Definition of intranasal

: lying within or administered by way of the nasal structures

Other Words from intranasal

intranasally \ -​ˈnāz(-​ə)-​lē How to pronounce intranasal (audio) \ adverb


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