circannual

not-comparable

(biology) Occurring or having cycles of approximately annual periodicity

Japanese Meaning

生物学において、約一年の周期を持つ現象を指す。 / 一年周期、または年間を単位とした周期性を有する

Researchers documented a circannual migration pattern in the bird population.

研究者たちはその鳥の個体群に約1年周期の渡りのパターンを記録した。

Sense（1）

(biology) Occurring or having cycles of approximately annual periodicity

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