/ Dictionary / Index T thremmatology: Meaning and Definition of Find definitions for: threm•ma•tol•o•gy Pronunciation: (threm"u-tol'u-jē), [key] — n. Biol. the science of breeding or propagating animals and plants under domestication. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. three-wheeler threnode Related Content Daily Word Quiz: fervor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language