Open Dictionary
mouse here to listen, click to choose/add more
Location: USA
Source: Learn That Word
Profile URL:

Are you a native English speaker? How do you pronounce this word?

Thank you for contributing!
upload mp3 file or record now it's easy, promised!

{%type%} Definitions

WordNet 3.0Copyright Princeton University


Short "hint"

n. - Either of two thickened triangular layers of conjunctiva extending from the nasal edge of the eye to the cornea.

Usage examples (28)
  • Unfortunately, after surgery a pterygium often grows back again.
  • Dark glasses may help calm irritation and slow the growth of a pterygium.
  • Yes, besides eye cataracts, pterygium and pinguecula caused by the light of fluorescent bulbs.
  • Sun exposure has also been linked to an abnormal growth on the corner of the eye near the nose called a pterygium. for more
Tutoring comment

Tutoring comment not yet available...

add more
The Open Dictionary of English is a collaborative project, based on Open Source materials, LearnThat resources, and partner APIs.
We give special thanks to our LearnThat volunteers, as well as Princeton University and Wiktionary for their Open Source word data. We're also grateful for the support given by Google,,, and YouTube,,,,, as well as the generous Creative Commons community.