Arcturus Hear it!

Arcturus definition

Arc·tu·rus (ärk to̵or′əs, -tyo̵or′-)

noun

a giant, orange star in the constellation Boötes, the brightest star in the N celestial sphere: magnitude, -0.04

Etymology: L < Gr Arktouros < arktos, a bear + ouros, a guard < IE *woros, heedful < base *wer-: see warn

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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