/ Dictionary / Index R rock hound: Meaning and Definition of Find definitions for: rock' hound" Pronunciation: [key] — Informal. Informal. a geologist. an amateur collector of rocks, fossils, or minerals. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. rock hind rock hounding Related Content Daily Word Quiz: clairvoyant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language