/ Dictionary / Index T tree squirrel: Meaning and Definition of Find definitions for: tree' squir"rel Pronunciation: [key] any squirrel of the genus Sciurus, with a long, bushy tail, familiar in parks and wooded areas throughout temperate regions. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. tree sparrow tree surgery Related Content Daily Word Quiz: eureka Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language