pterygium
[tuh-rij-ee-uh m]
noun, plural pte·ryg·i·ums, pte·ryg·i·a [tuh-rij-ee-uh] /təˈrɪdʒ i ə/. Ophthalmology.
an abnormal triangular mass of thickened conjunctiva extending over the cornea and interfering with vision.
Origin of pterygium
1650–60; < New Latin < Greek pterýgion little wing or fin, equivalent to pteryg- (stem of ptéryx) wing, fin + -ion diminutive suffix
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
pterygial
adjective
Word Origin for pterygial
from Greek pterux wing
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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pterygium
[tə-rĭj′ē-əm]
n. pl. pte•ryg•i•ums
The American Heritage® Stedman's Medical Dictionary
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