/ Dictionary / Index N nut grass: Meaning and Definition of Find definitions for: nut' grass" Pronunciation: [key] either of two sedges, Cyperus rotundus or C. esculentus, that have small, nutlike tubers and are often troublesome weeds. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: nutgrass (Thesaurus) nutgall nuthatch Related Content Daily Word Quiz: diligent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language