circannual

C3I1R1C3A1N1N1U1A1L1

adjective

Of biological processes: having or occurring in annual cycles or periods

“Light pollution can interfere with the circannual migration of birds.”

Scrabble 14
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Meanings

adjectivecircannual (not comparable)
  1. not comparablebiologyOf biological processes: having or occurring in annual cycles or periods

    Light pollution can interfere with the circannual migration of birds.

    3 more examples

    […] because morbidity and mortality from cardiovascular disease also reveal statistically significant circadian and circannual rhythms.

    1956, USAF School of Aerospace Medicine, Report [80-114], [1956], page 11

    Circannual rhythms control reproductive function in seasonal breeders.

    2000, Martin Hume Johnson, Barry J. Everitt, Essential Reproduction, page 110

    Seasonal variations in locomotor activity are generated by a circannual clock […].

    2001, Joseph S. Takahashi, Fred W. Turek, Robert Y. Moore, Handbook of Behavioral Neurobiology, page 523

Synonyms & antonyms

Also see
circumannual

Origin

Formed as Latin circā (“about”) + annual, after circadian.

Full word history & related roots →
Cite this entry
APA

circannual. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/circannual

MLA

“circannual.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/circannual. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “circannual,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/circannual.

Source: circannual on Wiktionary, CC BY-SA 4.0.