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dii Definition
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dii
noun(sta-pe-di-us)a small muscle of the middle ear that arises from the wall of the tympanum, is inserted into the neck of the stapes by a tendon that sometimes contains a slender spine of bone, and serves to check and dampen vibration of the stapes —called also stapedius muscle
dii
noun(sta-pe-di-us)a group of ridges forming a Y at the base of each finger on the palm of the hand