CONTRACTILITY By N., Sam M.S. - 0 noun. the ability of living tissues, especially muscles, to shrink and expand as a reaction to a stimulant. CONTRACTILITY: "The contractility of his muscles seemed to be weakening more every day." Related Psychology Terms Developing a Case Study SCHIZOID PERSONALITY (Schizo- thymic Personality) FREUD, SIGMUND (1856-1939) OBSESSRVE-COMPULSIVE REACTION Hitler and Conformity ANTISOCIAL REACTION READING DISABILITY (Paralexia, Dyslexia) SULLIVAN, HARRY STACK (1892- 1949) ADOLESCENCE (Theories) HORNEY, KAREN (1885-1952) Cite this page: N., Sam M.S., "CONTRACTILITY," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/contractility/ (accessed June 30, 2022).