/ Dictionary / Index T thermoform: Meaning and Definition of Find definitions for: ther•mo•form Pronunciation: (thûr'mu-fôrm"), [key] — v.t. to shape (esp. plastic) by the use of heat and pressure. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. thermoelectron thermogalvanometer 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