subvariant
Americannoun
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Microbiology, Pathology. a genetically distinct form of a virus, bacteria, or other microorganism, which arises when a variant of the original strain mutates.
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in a classification or hierarchy, a distinct, often more specialized type of something that is itself one of a subset of a broader or higher category; subtype.
Each fighter plane in the A-series was eventually issued in the subvariants of fighter-bomber and bomber-destroyer.
Etymology
Origin of subvariant
First recorded in 1900–05; sub- ( def. ) + variant ( def. )
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
It’s also not projected to be a particularly fast-growing subvariant, nor a dominant one.
From Los Angeles Times ● Apr. 20, 2026
According to the California Department of Public Health, the Cicada subvariant remains at low levels in the state’s wastewater, and there have been no reports of increased severity of illness among those who were infected.
From Los Angeles Times ● Apr. 20, 2026
However, the intended effectiveness of the flu vaccine against symptomatic disease caused by the new subvariant remains uncertain, the World Health Organization said.
From Los Angeles Times ● Dec. 23, 2025
The dreaded norovirus — the “vomiting bug” that often causes stomach flu symptoms — is climbing again in California, and doctors warn that a new subvariant could make even more people sick this season.
From Los Angeles Times ● Dec. 13, 2025
“It looks like a bit of a mismatch between the seasonal flu vaccine strains” and the new subvariant, Hudson said.
From Los Angeles Times ● Nov. 25, 2025
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.