/ Dictionary / Index T thermal noise: Meaning and Definition of Find definitions for: ther'mal noise' Pronunciation: [key] — Thermodynam., Thermodynam.,Elect. a wide spectrum of electromagnetic noise appearing in electronic circuits and devices as a result of the temperature-dependent random motions of electrons and other charge carriers. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. thermalgesia thermal pollution Related Content Daily Word Quiz: ravenous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language