| 释义 |
diel, a. and n. Biol.
Brit. |ˈdiːl|, |ˈdʌɪəl|, U.S. |ˈdil|, |ˈdaɪ(ə)l|
[‹ classical Latin diēs day (see diurnal adj. and n.) + -al suffix1.]
and n. Lasting for or involving a period of twenty-four hours. Also occas. as n.: a period of twenty-four hours.
1934J. R. Carpenter in Proc. Oklahoma Acad. Sci. 14 30 Diel: the day in the sense of the 24 hours. 1957Jrnl. Mammalogy 38 221 Activity is thought to consist of: (1) a feeding rhythm, and (2) a diel cycle that responds to light and temperature. 1975Nature 3 Jan. 42/2 Many species of fish..undergo diel vertical migrations. 1997G. S. Helfman et al. Diversity of Fishes xii. 189/2 Although sharks swim actively throughout the diel cycle,..the primary foraging times of most species are during twilight and nighttime. |