diurnal.

1. Active or occurring chiefly during daylight rather than at night.

2. Occurring each day or following a daily cycle.

Use it for

Words that belong together

• diurnal animal
• diurnal activity

On the page

The diurnal animal hid when the artificial dusk began.

Diurnal activity resumed as the canopy brightened.

Usage notes

Primary category: literary. Forms: Normally non-gradable as a physical or temporal relation; comparison requires an appropriate figurative or measured context. Legacy lexical fields mirror sense 1 only. Use numbered sense fields for all meanings.