(n.) A native or an inhabitant of a western country.
(a.) Of or pertaining to a family of butterflies called Hesperidae, or skippers.
(n.) Any one of the numerous species of Hesperidae; a skipper.
Example Sentences:
(1) Scientists had largely overlooked the Hesperian Epoch as it was thought that Mars was then a frozen wasteland.
(2) But before the Hesperian Epoch the planet was assumed to have lost most of its atmosphere and turned cold and dry.
(3) No one had expected to find evidence of a warm, wet climate capable of sustaining surface water on Mars during this period of the planet's history, known as the Hesperian epoch.
Noachian
Definition:
(a.) Of or pertaining to the patriarch Noah, or to his time.