English dictionary
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English adjective: diurnal | |||
| 1. | diurnal of or belonging to or active during the day | ||
| Samples | Diurnal animals are active during the day. Diurnal flowers are open during the day and closed at night. Diurnal and nocturnal offices. | ||
| Domain category | biological science, biology | ||
| Antonyms | nocturnal | ||
| 2. | diurnal having a daily cycle or occurring every day | ||
| Samples | Diurnal rotation of the heavens. | ||
| Similar | periodic, periodical | ||
| Antonyms | aperiodic, nonperiodic | ||
Based on WordNet 3.0 copyright © Princeton University.
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Web design: Orcapia v/Per Bang. English edition: .
2025 onlineordbog.dk