Also see definition of "arcturus" in Bible Study Dictionaries
Word Study
arcturus
CIDE DICTIONARY
arcturus, n. [L. Arcturus, Gr. bearward, equiv. to ; bear + ward, guard. See Arctic.].
A fixed star of the first magnitude in the constellation Boötes. [1913 Webster]
" Arcturus has sometimes been incorrectly used as the name of the constellation, or even of Ursa Major." [1913 Webster]
"Canst thou guide Arcturus with his sons [Rev. Ver.: “the Bear with her train”]." [1913 Webster]
Also see definition of "arcturus" in Bible Study Dictionaries
For further exploring for "arcturus" in Webster Dictionary Online