pterygium

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noun

An abnormal mass of tissue in the corner of the eye that obstructs vision.

OriginAncient Greek πτερύγιον →
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Meanings

nounpterygium (plural pterygiums or pterygia)

plural pterygiums · plural pterygia

  1. medicineAn abnormal mass of tissue in the corner of the eye that obstructs vision.
  2. biologyA generalized limb of a vertebrate.

Synonyms & antonyms

Also see
webeye

Origin

  1. Ancient Greekπτερύγιον
  2. Englishpterygium

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

More words from Ancient Greek

Full word history & related roots →

Translations

Arabic ظُفْرَة
  • ظُفْرَة (ẓufra)Translations
Catalan pterigi
  • pterigiTranslations
Icelandic glæruvængur
  • glæruvængurTranslations
Italian pterigio
  • pterigioTranslations
Portuguese pterígio
  • pterígioTranslations
Spanish pterigión
  • pterigiónTranslations
Cite this entry
APA

pterygium. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/pterygium

MLA

“pterygium.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/pterygium. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “pterygium,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/pterygium.

Source: pterygium on Wiktionary, CC BY-SA 4.0.