Webster’s Revised Unabridged Dictionary · 1913
Delphin
Del′phin, Del′phine, a. [See Dauphin.] 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).
Del′phin, n. [L. delphinus a dolphin.] (Chem.) A fatty substance contained in the oil of the dolphin and the porpoise; — called also phocenin.