பொருள் : Of or belonging to or active during the day.
எடுத்துக்காட்டு :
Diurnal animals are active during the day.
Diurnal flowers are open during the day and closed at night.
Diurnal and nocturnal offices.
Belonging to or active during the night.
Nocturnal animals are active at night.பொருள் : Having a daily cycle or occurring every day.
எடுத்துக்காட்டு :
Diurnal rotation of the heavens.