pterygium

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English

Etymology

From Ancient Greek πτερύγιον (pterúgion), diminutive of πτέρυξ (ptérux, wing).

Noun

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pterygium (plural pterygiums or pterygia)

  1. (pathology) An abnormal mass of tissue in the corner of the eye that obstructs vision
  2. (zoology) A generalized limb of a vertebrate

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