/ Dictionary / Index N neuston: Meaning and Definition of Find definitions for: neus•ton Pronunciation: (n'ston, ny'-), [key] — n. the aggregate of minute aquatic organisms that float or swim in the surface film of a body of water. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Neuss Neustria Related Content Daily Word Quiz: cygnet Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language