/ Dictionary / Index T thermophile: Meaning and Definition of Find definitions for: ther•mo•phile Pronunciation: (thûr'mu-fīl", -fil), [key] — n. a thermophilic organism. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. thermoperiodicity thermophilic Related Content Daily Word Quiz: wizened Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language