MYOCARDIUM Meaning of MYOCARDIUM in English [ ˌmʌɪə(ʊ)'kα:dɪəm ]■ noun Anatomy the muscular tissue of the heart.Derivativesmyocardial adjectivemyocarditis noun OriginC19: mod. L., from myo- + Gk kardia 'heart'. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004