/ Dictionary / Index C ceratodus: Meaning and Definition of Find definitions for: ce•rat•o•dus Pronunciation: (su-rat'u-dus, ser"u-tō'dus), [key] — pl. -dus•es. a lungfish of either of two genera, Ceratodus or Neoceratodus, having hornlike ridges on the teeth. Cf. barramunda. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: ceratodus (Thesaurus) cerato- ceratoid Related Content Daily Word Quiz: pedagogy Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language