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diel

American  
[dahy-uhl, dee-] / ˈdaɪ əl, ˈdi- /

adjective

Biology.
  1. of or relating to a 24-hour period, especially a regular daily cycle, as of the physiology or behavior of an organism.


Etymology

Origin of diel

1930–35; apparently < Latin di ( ēs ) day + -al 1, spelling with e to avoid identity with dial

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Humans are mostly unaware of this daily aquatic movement, known as diel vertical migration, but it's the largest routine migration of life on Earth.

From Scientific American • Aug. 20, 2022

The research suggests that since the stakes are so high—migrate or be eaten—evolution favored development of an internal circadian cycle for diel migration, as a backup to reliance on environmental cues.

From Scientific American • Dec. 6, 2021

Sato, M., Dower, J. F., Kunze, E. & Dewey, R. Second-order seasonal variability in diel vertical migration timing of euphausiids in a coastal inlet.

From Nature • Apr. 17, 2018

Longhurst, A. R. & Glen Harrison, W. Vertical nitrogen flux from the oceanic photic zone by diel migrant zooplankton and nekton.

From Nature • Apr. 17, 2018

The diel activity cycle likewise depends upon temperatures but is influenced by other factors as well.

From Natural History of Cottonmouth Moccasin, Agkistrodon piscovorus (Reptilia) by Burkett, Ray D.

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