/ Dictionary / Index R rock plant: Meaning and Definition of Find definitions for: rock' plant" Pronunciation: [key] a plant found among rocks or in rock gardens. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. rock pigeon rock prickleback Related Content Daily Word Quiz: winsome Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language