Hesperus definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
the evening star, esp. Venus
Origin: Classical Latin ; from Classical Greek Hesperos: see Hesperian
Hesperus definition by American Heritage Dictionary
The planet Venus in its appearance as the evening star.
Origin: Middle English, from Latin, from Greek hesperos; see Hesperian.