‖Ar″go (�), n. [L. Argo, Gr. �.] 1. (Myth.) The name of the ship which carried Jason and his fifty-four companions to Colchis, in quest of the Golden Fleece.
2. (Astron.) A large constellation in the southern hemisphere, called also Argo Navis. In modern astronomy it is replaced by its three divisions, Carina, Puppis, and Vela.