/ Dictionary / Index D Delphinus: Meaning and Definition of Find definitions for: Del•phi•nus Pronunciation: (del-fī'nus), [key] — gen. -ni the Dolphin, a northern constellation between Aquila and Pegasus. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: delphinus (Thesaurus) delphinium Delray Beach Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language