/ Dictionary / Index R rock gunnel: Meaning and Definition of Find definitions for: rock' gun"nel. Pronunciation: [key] See under. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. rock glacier Rockhampton Related Content Daily Word Quiz: maritime Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language