/ Dictionary / Index R restharrow: Meaning and Definition of Find definitions for: rest•har•row Pronunciation: (rest'har"ō), [key] — n. a low, pink-flowered European shrub, Ononis spinosa, of the legume family, having tough roots that hinder the plow or harrow. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: restharrow (Thesaurus) restful rest home Related Content Daily Word Quiz: vertigo Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language