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Webster 1913 Edition

Pterygium

‖

Pte-ryg′i-um

,

Noun.

;

pl. E.

Pterygiums

(#)

, L.

Pterygia

(#)

.

[NL., fr. Gr. [GREEK], properly a dim, akin to [GREEK] a feather.]

(Med.)

A superficial growth of vascular tissue radiating in a fanlike manner from the cornea over the surface of the eye.