diurnal (suomeksi)

päivään liittyvä (a)
päivä- (a: happening during daylight; primarily active during the day)
päiväaikainen (a: happening during daylight; primarily active during the day)
päiväaktiivinen (a: happening during daylight; primarily active during the day)
diurnaalinen (a: happening during daylight; primarily active during the day)
päiväksi kukkansa avaava (a: botany; of flowers open or releasing perfume during the day)
päivittäinen (a: having a daily cycle / done once every day)
vuorokautinen (a: having a daily cycle)
vuorokausi- (a: having a daily cycle)
jokapäiväinen (a: done once every day)