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.
--
n.
The pterotic bone.
The pterotic bone is so called because fancied in some cases to resemble in form a bird's wing
© Webster 1913.