n. 1 any of various porpoise-like sea mammals of the family Delphinidae having a slender beaklike snout. 2 (in general use) = DORADO 1. 3 a bollard, pile, or buoy for mooring. 4 a structure for protecting the pier of a bridge. 5 a curved fish in heraldry, sculpture, etc.
[ ME, also delphin f. L delphinus f. Gk delphis -inos ]