/ Dictionary / Index S spastic: Meaning and Definition of Find definitions for: spas•tic Pronunciation: (spas'tik), [key] — Pathol. Pathol. —adj. pertaining to, of the nature of, or characterized by spasm, esp. tonic spasm. —n. a person exhibiting such spasms. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: spastic (Thesaurus) Spassky spastic colon Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language