Origin and Etymology of malleus
New Latin, from Latin, hammer
First Known Use: 1669
Medical Definition of malleus
mallei\-ē-ˌī, -ē-ˌē\play play
: the outermost of the chain of three ossicles in the middle ear of a mammal consisting of a head, neck, short process, long process, and handle with the short process and handle being fastened to the tympanic membrane and the head articulating with the head of the incus—called also hammer
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