/ Dictionary / Index D danio: Meaning and Definition of Find definitions for: dan•i•o Pronunciation: (dā'nē-ō"), [key] — pl. -i•os. any of several cyprinid fishes of the genera Danio and Brachydanio, of India and Sri Lanka, often kept in aquariums. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Danilova Danish Related Content Daily Word Quiz: impetuous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language