/ Dictionary / Index T thomisid: Meaning and Definition of Find definitions for: tho•mi•sid Pronunciation: (thō'mu-sid), [key] — n. a spider of the family Thomisidae, comprising the crab spiders. —adj. belonging or pertaining to the family Thomisidae. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Thomasville Thomism Related Content Daily Word Quiz: penurious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language