- 1. a. Of, pertaining to, done or occuring in, the night; as, nocturnal darkness, cries, expedition, etc.; -- opposed to diurnal. Source: opted
- 2. a. Having a habit of seeking food or moving about at night; as, nocturnal birds and insects. Source: opted
- 3. n. An instrument formerly used for taking the altitude of the stars, etc., at sea. Source: opted
- 4. adj. belonging to or active during the night Source: wordnet
- 5. adj. of or relating to or occurring in the night Source: wordnet
- 6. 1. Of, pertaining to, done or occuring in, the night; as, nocturnal darkness, cries, expedition, etc.; -- opposed to Ant: diurnal. Dryden. 2. Having a habit of seeking food or moving about at night; as, nocturnal birds and insects. An instrument formerly used for taking the altitude of the stars, etc., at sea. I. Watts. Source: webster
- 7. An instrument formerly used for taking the altitude of thestars, etc., at sea. I. Watts. Source: adambom
- 8. j:100 a. belonging to or active during the night a. of or relating to or occurring in the night Source: ecdict
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