/ Dictionary / Index P plasticity: Meaning and Definition of Find definitions for: plas•tic•i•ty Pronunciation: (pla-stis'i-tē), [key] — n. the quality or state of being plastic. the capability of being molded, receiving shape, or being made to assume a desired form: the plasticity of social institutions; the great plasticity of clay. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: plasticity (Thesaurus) Plasticine plasticize Related Content Daily Word Quiz: miscreant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language