/ Dictionary / Index N nauplius: Meaning and Definition of Find definitions for: nau•pli•us Pronunciation: (nô'plē-us), [key] — pl. -pli•i (in many crustaceans) a larval form with three pairs of appendages and a single median eye, occurring usually as the first stage of development after leaving the egg. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. naumannite Nauru Related Content Daily Word Quiz: fabricate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language