malleus       
noun [ C usually singular ]  anatomy specialized uk/ˈmæl.i.əs/ us/ˈmæl.i.əs/  mallei /ˈmæl.i.aɪ/ /ˈmæl.i.aɪ/
 锤骨(引导声波从中耳传至内耳的三块小骨之一)
one of three very small bones that carry sound from the eardrum to the inner ear
 Compare: incusstapes