musculaturePronunciation: /ˈmʌskjʊlətʃə/Definition of musculature noun [mass noun] the system or arrangement of muscles in a body, part of the body, or an organ: the shape and musculature of a dolphin the speech musculatureOrigin: late 19th century: from French, from Latin musculus (see muscle)musculature in other Oxford dictionaries Definition of musculature in the US English dictionary