2 definitions found From WordNet (r) 2.0 [wn]: Serpens noun: a constellation in the equatorial region of the northern hemisphere near Ophiuchus and Corona Borealis From The Collaborative International Dictionary of English v.0.44 [gcide]: Serpens \Ser"pens\, noun [L. See {Serpent}.] (Astron.) A constellation represented as a serpent held by Serpentarius.

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