troponinPronunciation: /ˈtrəʊpə(ʊ)nɪn/Definition of troponin noun [mass noun] Biochemistry a globular protein complex involved in muscle contraction. It occurs with tropomyosin in the thin filaments of muscle tissue. Origin: 1960s: from tropomyosin + -n- + -in1troponin in other Oxford dictionaries Definition of troponin in the US English dictionary
