diurnal

[dahy-ur-nl]

diurnal Definition

• 1. of or relating to a day or each day; daily
• 2. active during the day; opposite of nocturnal

Using diurnal: Examples

Take a moment to familiarize yourself with how "diurnal" can be used in various situations through the following examples!

• Example

  Diurnal animals are active during the day.

• Example

  The diurnal cycle of the earth's rotation causes day and night.

• Example

  The diurnal temperature range is the difference between the highest and lowest temperatures during a day.

diurnal Synonyms and Antonyms

Synonyms for diurnal

• daily
• daytime
• daylight
• circadian

Antonyms for diurnal

• nocturnal

Phrases with diurnal

• diurnal rhythm

  a biological rhythm that is synchronized with the day-night cycle

  Example

  The diurnal rhythm of humans is regulated by the circadian clock.

• diurnal variation

  the natural variation in a physical or biological process that occurs over the course of a day

  Example

  The diurnal variation in air temperature affects plant growth and development.

• diurnal tides

  tides that occur once every 24 hours, as a result of the gravitational pull of the moon and sun

  Example

  The diurnal tides are most noticeable in areas with a large tidal range.

Origins of diurnal

from Latin 'diurnalis', from 'dies' meaning 'day'

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Summary: diurnal in Brief

'Diurnal' [dahy-ur-nl] describes things that happen during the day or recur daily. It is often used to describe animals that are active during the day, such as birds and squirrels. The term also refers to the natural variation in physical or biological processes that occur over the course of a day, like the diurnal temperature range.