Online Google Dictionary

diurnal 中文解釋 wordnet sense Collocation Usage Collins Definition
Adjective
/dīˈərnl/,
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Of or during the day,
  1. Of or during the day

  2. (of animals) Active in the daytime

  3. (of flowers) Open only during the day

  4. Daily; of each day
    • - diurnal rhythms
  5. Of or resulting from the daily rotation of the earth


  1. of or belonging to or active during the day; "diurnal animals are active during the day"; "diurnal flowers are open during the day and closed at night"; "diurnal and nocturnal offices"
  2. having a daily cycle or occurring every day; "diurnal rotation of the heavens"
  3. (diurnally) daily; By daylight; Every daytime
  4. From the Latin diurnus, daily. Refers to the southern (upper) hemisphere of a horoscope, the "day" section of a horoscope, that part of the heavens that appears above the Earth's horizon.
  5. Daily; related to actions which are completed in the course of a calendar day, and which typically recur every calendar day (e.g., diurnal temperature rises during the day, and diurnal falls at night).
  6. Animals that hunt and live in the day light hours.
  7. Active during daylight hours.
  8. Pertaining to actions or events that occur during a twenty-four hour cycle or recurs every twenty-four hours. Meteorological elements that are measured diurnally include clouds, precipitation, pressure, relative humidity, temperature, and wind.
  9. in geography, daily, or of each day, where a day means the full 24 hour period.
  10. Hunting, feeding, and general living during the day time.
  11. Literally of the day, but here meaning having a period or a TIDAL DAY, i.e. about 24.84 hours. See Figure 11.
  12. Exhibiting a daily cycle, e.g. over one day and one night.
  13. Most active during daylight hours. The term 'activity' refers to natural or normal functions and may include: movement, feeding, hunting, migration, breeding, nest building, etc.
  14. Occurring in the daytime. A patient may have a diurnal fever rather than a nocturnal one. Diurnal also can refer to recurring every day. ...
  15. Daily, usually applied to events or cycles that repeat on daily intervals.
  16. Term describing the occurrence of an event at least once every 24 hours. cf circadian.
  17. Pertaining to the daylight portion of the 24-hour day.
  18. of flowers, opening only during daylight hours.
  19. Occurring during a 24-hr period; diurnal variation. (2) Occurring during the day time (as opposed to night time). (3) In tidal hydraulics, having a period or cycle of approximately one tidal day.
  20. During the day, marking planets above the horizon (between the first and seventh cusps via the Mid-Heaven), versus Nocturnal: below the horizon (during the night).
  21. relating to the daytime; daily (opposed to nocturnal)
  22. Performed in twenty-four hours, such as the diurnal revolution of the Earth.
  23. during the daytime. The diurnal resting places of mosquitoes, especially newly-fed females, may be important in malaria control.
  24. Describes both a day active animal or rhythm, and a rhythm with a period of approximately 24 hours under a light dark cycle.
  25. Having to do with the day time. Used in referring to the sect of a chart: i.e. either diurnal or nocturnal sect.