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Pronunciation varies by accent · adjective
(biology) Of biological processes: having or occurring in annual cycles or periods.
Light pollution can interfere with the circannual migration of birds.
[…] because morbidity and mortality from cardiovascular disease also reveal statistically significant circadian and circannual rhythms.
Circannual rhythms control reproductive function in seasonal breeders.
Seasonal variations in locomotor activity are generated by a circannual clock […].
Use circannual when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Circannual means (biology) Of biological processes: having or occurring in annual cycles or periods.
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Light pollution can interfere with the circannual migration of birds.
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