A fatty substance contained in the oil of the dolphin and the porpoise; -- called also phocenin.

The Delphin (dolphin) was a German midget submarine created during World War II. Designed in 1944, only three prototypes were created by the Kriegsmarine by the end of the war, all of which were destroyed. The Delphin was built for underwater speed attacks, as German engineers discovered that past midget submarines were too slow to match the speeds of large ships in the English Channel.

Pertaining to the dauphin of France; as, the Delphin classics, an edition of the Latin classics, prepared in the reign of Louis XIV., for the use of the dauphin (in usum Delphini).