/ Dictionary / Index P pebble dash: Meaning and Definition of Find definitions for: peb'ble dash" Pronunciation: [key] an exterior wall finish composed of mortar against which, while still wet, small pebbles have been thrown and pressed in. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. pebble pebble heater Related Content Daily Word Quiz: fabricate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language