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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.

See Examples For:

By the 1990s researchers had learned enough to describe the diel migration as a cloud of organisms rising and falling in unison.

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

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

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

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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