Pte*ro"tic (?), a. [Gr. wing + , , ear.] Anat.
Of or pertaining to, or designating, a bone between the prootic and epiotic in the dorsal and outer part of the periotic capsule of many fishes.
The pterotic bone.
The pterotic bone is so called because fancied in some cases to resemble in form a bird's wing
© Webster 1913.