/ Dictionary / Index T Thetford Mines: Meaning and Definition of Find definitions for: Thet'ford Mines' Pronunciation: (thet'furd), [key] a city in S Quebec, in E Canada: asbestos mining. 19,965. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. theta wave thetic Related Content Daily Word Quiz: frugal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language