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- papillary muscle d. impaired function of a papillary muscle, usually due to ischemia or infarction, with resulting incompetence of the mitral (rarely tricuspid) valve. SYN: papillary muscle syndrome.
- psychosexual d., sexual d. a disturbance of sexual functioning, e.g., impotence, premature ejaculation, anorgasmia, presumed to be of psychological rather than physical etiology.
- sphincter of Oddi d. structural or functional abnormality of the sphincter of Oddi that interferes with bile or pancreatic duct drainage. SYN: biliary dyskinesia.
- temporomandibular joint d. (TMD, TMJ) chronic or impaired function of the temporomandibular articulation. See temporomandibular arthrosis, myofascial pain-d. syndrome.
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dys·func·tion also dis·func·tion (')dis-'fəŋ(k)-shən n impaired or abnormal functioning (as of an organ of the body) see MINIMAL BRAIN DYSFUNCTION
dys·func·tion·al -shnəl, -shən-əl adj
dys·func·tion·ing -shə-niŋ n
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dys·func·tion (dis-funkґshən) disturbance, impairment, or abnormality of the functioning of an organ.Medical dictionary. 2011.