Diurnal ( adjective , noun )

(As an adjective)

Diurnal ( adjective )

1. Occurring during the day.
2. Relating to or denoting the period of a day.

Origin:

Late middle english: from latin diurnalis, from diurnus (see diurnal cycle).

Examples:

1. Diurnal animals are active during the day.
2. The diurnal rhythm of the human body.
3. The diurnal temperature variation.
4. Diurnal birds are active during the day.
5. Diurnal insects are active during the day.

(As a noun)

Diurnal ( noun )

1. Occurring during the day.
2. Relating to or denoting the period of a day.

Origin:

Late middle english: from latin diurnalis, from diurnus (see diurnal cycle).

Examples:

1. Diurnal animals are active during the day.
2. The diurnal rhythm of the human body.
3. The diurnal temperature variation.
4. Diurnal birds are active during the day.
5. Diurnal insects are active during the day.