ideo·plas·tic \| ̷ ̷ ̷ ̷ō|plastik\adjective Etymology: International Scientific Vocabulary ideo- + -plastic; originally formed as French idéoplastique 1.: modified by mental activity < ideoplastic factors in digestion > 2.of an art form: rendered symbolic or conventional through the mental remodeling of natural subjects • ideo·plas·tic·i·ty\-ˌpla|stisəd.ē\noun