Definition from Wiktionary, the free dictionary
- IPA: /ˈvɛspərtɪn, -ˌtaɪn/
vespertine (not comparable)
- (poetic) Occurring in or related to the evening.
- (zoology) Pertaining to animals which are principally active at dusk.
- (botany) Pertaining to plants which open or bloom in the evening.
See also 
- vocative masculine singular of vespertīnus