pte·ryg·i·um (t -r j  -m)n. pl. pte·ryg·i·ums or pte·ryg·i·a (- -) An abnormal mass of tissue arising from the conjunctiva of the inner corner of the eye that obstructs vision by growing over the cornea. [New Latin, from Greek pterugion, diminutive of pterux, pterug-, wing; see pterygoid.] pte·ryg i·al (-l) adj. |
pterygial [təˈrɪdʒɪəl]
adj
(Life Sciences & Allied Applications / Zoology) Zoology of or relating to a fin or wing
[from Greek pterux wing]
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