1

diurnal

play
adjective di·ur·nal \dī-ˈər-nəl\

Definition of diurnal

  1. 1a :  recurring every day diurnal tasksb :  having a daily cycle diurnal tides

  2. 2a :  of, relating to, or occurring in the daytime the city's diurnal noisesb biology :  active chiefly in the daytime diurnal animalsc botany :  opening during the day and closing at night diurnal flowers

diurnally

play \-nəl-ē\ adverb

diurnal was our Word of the Day on 07/05/2009. Hear the podcast!

Examples of diurnal in a sentence

  1. a love as constant and certain as the diurnal tides

Origin and Etymology of diurnal

Middle English, from Latin diurnalis — more at journal


First Known Use: 14th century


2

diurnal

noun di·ur·nal

Definition of diurnal

  1. 1 archaic :  diary, daybook

  2. 2 :  journal 1a

Examples of diurnal in a sentence

  1. a microfilm containing a collection of diurnals published by 19th-century American abolitionists

Origin and Etymology of diurnal

see 1diurnal


First Known Use: 1600


DIURNAL Defined for English Language Learners

1

diurnal

play
adjective di·ur·nal \dī-ˈər-nəl\

Definition of diurnal for English Language Learners

  • : active mainly during the day

  • : happening every day


Medical Dictionary

diurnal

play
adjective di·ur·nal \dī-ˈərn-əl\

Medical Definition of diurnal

  1. 1:  having a daily cycle diurnal rhythms

  2. 2a:  of, relating to, or occurring in the daytime diurnal activityb:  chiefly active during the daytime diurnal mosquitoes

diurnally

\-əl-ē\play adverb


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