adjective \ˈdī-əl, -ˌel\

Definition of DIEL

:  involving a 24-hour period that usually includes a day and the adjoining night <diel fluctuations in temperature>

Origin of DIEL

irregular from Latin dies day + English -al
First Known Use: circa 1935


Next Word in the Dictionary: dieldrin
Previous Word in the Dictionary: die head
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