| 释义 |
di·ur·na·tion
\ˌdī(ˌ)ərˈnāshən\ noun
(-s)
Etymology: Latin diurnus of the day, daily + English -ation (as in hibernation) — more at journal
1. : the habit of sleeping or being quiescent by day
< the diurnation of bats >
2. : a daily recurrent fluctuation in an ecological community (as the vertical movement of plankton) |