/ Dictionary / Index T thermolysis: Meaning and Definition of Find definitions for: ther•mol•y•sis Pronunciation: (thur-mol'u-sis), [key] — n. the dispersion of heat from the body. dissociation by heat. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. thermoluminescence dating thermomagnetic Related Content Daily Word Quiz: agitated Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language