Pterygium

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    An abnormal mass of tissue in the corner of the eye that obstructs vision.
  2. 2
    either of two thickened triangular layers of conjunctiva extending from the nasal edge of the eye to the cornea; it arises from irritation of the pinguecula wordnet
  3. 3
    A generalized limb of a vertebrate.

Synonyms

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webeyewebeye

Example

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"The reason why your corneas are getting covered with pterygium—what is called "the Surfer's Eye"—is because you are exposing yourself too much to the sun and the wind."

Etymology

From Ancient Greek πτερύγιον (pterúgion), diminutive of πτέρυξ (ptérux, “wing”). By surface analysis, pteryg- + -ium.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.