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The Collaborative International Dictionary
Delphinic acid

Delphinic \Del*phin"ic\, a. [See Delphin, n.] (Chem.) Pertaining to, or derived from, the dolphin; phocenic.

Delphinic acid. (Chem.) See Valeric acid, under Valeric. [Obs.]

Wiktionary
delphinic acid

n. (context dated English) valeric acid