Zoology. Any of various other structures covering or closing an aperture; spec. (a) a small bone in the middle ear of amphibians or (formerly) in…

Zoology. A roundish and flattened part or structure in or on the outside of an animal body. = facial disc n. at facial, adj. n.compounds.

= ear tuft n. (a) at ear, n.1 compounds 2. Obsolete. rare.

A tuft or crest of feathers on top of a bird's head; esp. either of the paired ear tufts typical of many owls.