Definition of non-nocturnal in English:
Active during the day.
- I thought I was safe at night. Safe from non-nocturnal flying insects with colorful wings.
- At times Else suspected that her own daytime wanderings were some frightening kind of non- nocturnal somnambulism.
- Nocturnal eaters were significantly more likely to report binge eating and differed significantly from non-nocturnal eaters.