||Mal"le*us (?), n.; pl.
Mallei (#). [L., hammer. See Mall a beetle.]
1. (Anat.) The outermost of the three
small auditory bones, ossicles; the hammer. It is attached to the
tympanic membrane by a long process, the handle or manubrium. See
Illust. of Far.
2. (Zoöl.) One of the hard
lateral pieces of the mastax of Rotifera. See
Mastax.
3. (Zoöl.) A genus of bivalve
shells; the hammer shell.