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Definition of Term

diurnal
(English) Active during day (including courtship and spawning), resting at night. Opposite of nocturnal. [Mainly diurnal: active during day, to a lesser extent also during crepuscular periods and at night; spawning may take place at night.] (See also: nocturnal, deep scattering layer, crepuscular)
diurne
(French) Appartenant à la journée; actif par jour; l'antonyme de nocturne. (See also: nocturnal, deep scattering layer, crepuscular)
diurno
(Portuguese) Pertencente ao dia solar; activo de dia; oposto de nocturno. (See also: nocturnal, deep scattering layer, crepuscular)

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