/ Dictionary / Index T Townsend avalanche: Meaning and Definition of Find definitions for: Town'send av'alanche Pronunciation: (toun'zund), [key] — Physics. Physics. avalanche (def. 3). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. townscape Townsend plan Related Content Daily Word Quiz: digression Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language