# diurnal

> English word · Adjective · IPA /daɪˈɜːnəl/ · frequency rank #42,102

## Definitions
1. Happening or occurring during daylight, or primarily active during that time.
2. Said of a flower that is open, or releasing its perfume during daylight hours, but not at night.
3. Having a daily cycle that is completed every 24 hours, usually referring to tasks, processes, tides, or sunrise to sunset; circadian.
4. Done once every day; daily, quotidian.
5. Published daily.

## Etymology
From Latin diurnālis, from diēs (“day”). Doublet of journal.

## Common misspellings (10)
`ddiurnal`, `dirunal`, `diunral`, `diuranl`, `diurnall`, `diurnla`, `diurnnal`, `diurrnal`, `duirnal`, `idurnal`

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/diurnal