腱けん膜まくけんまくMeanings1noun, noun which may take the genitive case particle 'no'aponeurosisAnatomical term for a sheet-like tendon. Used in medical and biological contexts.腱けん膜まくは筋きん肉にくを骨ほねにつなぐ役やく割わりを果はたす。The aponeurosis serves to connect muscle to bone.