The survival of an infectious agent or its vector through the winter, during which time it does not infect a host(noun)
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Use "overwintering" in a sentence
"They compose perennial structures such as overwintering buds, bulbs or tubers."
"Perennials instead build "structures" such as overwintering buds, bulbs or tubers, that contain cells that are not yet specialized and, when the next growing season begins, can be converted into stalks and leaves. making flowers, and thus, after dropping seeds, it dies."
""overwintering" in the vetiver stems and a timely fire might also be beneficial."