intranasal
adjective
in·tra·na·sal
ˌin-trə-ˈnā-zəl 
-(ˌ)trä-
: lying within or administered by way of the nasal structures
Examples of intranasal in a Sentence
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Oral antihistamines work best when started two to four weeks before peak season, and intranasal steroid sprays take up to two weeks to reach full effectiveness per Dr. Tummala via the American Lung Association.
—
Allison Palmer, Sacbee.com, 30 Apr. 2026
Many vets stock oral or intranasal vaccines for Bordetella and parainfluenza, and injectable canine influenza and Lyme vaccines.
—The Washington Post, San Diego Union-Tribune, 14 Apr. 2026
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
See All Example Sentences for intranasal
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Allison Palmer, Sacbee.com, 30 Apr. 2026
Many vets stock oral or intranasal vaccines for Bordetella and parainfluenza, and injectable canine influenza and Lyme vaccines.
—The Washington Post, San Diego Union-Tribune, 14 Apr. 2026
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
See All Example Sentences for intranasal
Cite this Entry
“Intranasal.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/intranasal. Accessed 20 May. 2026.
Copy CitationMedical Definition
intranasal
adjective
in·tra·na·sal
-ˈnā-zəl
: lying within or administered by way of the nasal structures
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