diurnal

diurnal
[dʌɪˈəːn(ə)l]
adjective
  1. of or during the day
    白天的;日间的
    ■(Zoology)(of animals) active in the daytime
    (动)(动物)日间活动的,昼行性的
    ■(Botany)(of flowers) open only during the day
    (植)(花)昼开夜闭的
  2. daily; of each day
    每日的;每天的
    diurnal rhythms.
    每天的节奏。
    ■(Astronomy)of or resulting from the daily rotation of the earth
    (天文)周日的
    diurnal aberration.
    周日光行差。
派生
diurnally
adverb
语源
  1. late Middle English (as a term in astronomy): from late Latin diurnalis, from Latin diurnus 'daily', from dies 'day'
英语宝典
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