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circannual

American

[sur-kan-yoo-uhl] / sɜrˈkæn ju əl /

adjective

Biology.

noting or pertaining to a biological activity or cycle that recurs yearly.

Etymology

Origin of circannual

First recorded in 1970–75; circ(a) + annual

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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.