diurnal

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My search revealed the words "diurnal," "dewlap," "osmoregulation," and "Guatemala," all technical terms that relate to the iguana in some way, shape or form.

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Definitions (25)

Toggle American Heritage definitions American Heritage Dictionary (6)

  1. adjective Relating to or occurring in a 24-hour period; daily.
  2. adjective Occurring or active during the daytime rather than at night: diurnal animals.
  3. adjective Botany Opening during daylight hours and closing at night.
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Examples (50)

  • In all places of the earth, as soon as we descend to a certain depth, the thermometer no longer experiences either diurnal or annual variation. —  Biographies of Distinguished Scientific Men
  • It was mounted in December.—The computation of the photographic records of the barometer from 1854 to 1873 has so far advanced that we can assert positively that there is no trace of lunar tide in the atmosphere; but that there is a strongly marked semi-diurnal solar tide, accompanied with a smaller diurnal tide. —  Autobiography of Sir George Biddell Airy
  • Every morning Dazzle's dad woke with the dawn, lapped dirty water from a blocked drain, and set off for his diurnal scrounge through the neighborhood alleyways. —  F ;SF; - vol 097 issue 06 - December 1999
  • Whether it be invariably Sunday or not, at least it is always octo-diurnal. —  Memoirs of Aaron Burr, Volume 2.
  • My search revealed the words "diurnal," "dewlap," "osmoregulation," and "Guatemala," all technical terms that relate to the iguana in some way, shape or form. —  Staff Blogs
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Etymologies (2)

Toggle American Heritage etymologies American Heritage Dictionary (1)

  1. Middle English, from Late Latin diurnālis, from Latin diurnus, from diēs, day; see dyeu- in Indo-European roots.

Toggle Century etymologies Century Dictionary (1)

  1. from Middle English diurnal = French diurnal = Sg. Portuguese diurnal = Italian diurnale, from Latin diurnalis, daily, from diurnus, daily: see diurn. See also journal, a doublet of diurnal.
 

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/daɪˈərnəl/
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