Hes*pe"ri*an (?), a. [L. hesperius, fr. hesperus the evening star, Gr. &?; evening, &?; &?; the evening star. Cf. Vesper.] Western; being in the west; occidental. [Poetic] Milton.

Hes*pe"ri*an, n. A native or an inhabitant of a western country. [Poetic] J. Barlow.

Hes*pe"ri*an, a. (Zoöl.) Of or pertaining to a family of butterflies called Hesperidæ, or skippers. -- n. Any one of the numerous species of Hesperidæ; a skipper.

• of or relating to the land where the sun sets; western
  
• of or related to the Hesperides nymphs
  
• of or related to the Hesperidae family of butterflies
  
• of or relating to the Martian geological period between Noachian and Amazonian
  
• an inhabitant of the western lands
  
• a butterfly of the family Hesperidae; a Skipper
  
• the Hesperian geological time period of Mars