'Ophiuchus' definitions:

Definition of 'Ophiuchus'

From: WordNet
noun
A large constellation in the equatorial region between Hercules and Scorpius

Definition of 'Ophiuchus'

From: GCIDE
  • Serpentarius \Ser`pen*ta"ri*us\, n.[NL., fr. L. serpens serpent.] (Astron.) A constellation on the equator, lying between Scorpio and Hercules; -- called also Ophiuchus. [1913 Webster]