Arc*tu"rus (#), n. [L. Arcturus, Gr. bearward, equiv. to ; bear + ward, guard. See Arctic.] Anat.
A fixed star of the first magnitude in the constellation Bootes.
⇒ Arcturus has sometimes been incorrectly used as the name of the constellation, or even of Ursa Major.
Canst thou guide Arcturus with his sons [Rev. Ver.: "the Bear with her train"].
Job xxxviii. 32.
© Webster 1913.