Pterygium
/təˈrɪdʒi.əm/noun
A wing-shaped growth on the conjunctiva of the eye, or a fin-like body part in anatomy.
Did you know?The word comes from Greek *pterygion*, a diminutive of *pteryx* (“wing”), the same ancient root behind scientific words like *pterodactyl* and *helicopter*’s hidden cousin *-pter* forms.
Etymological Timeline
Ancient Greek
GRK
pterygion (πτερύγιον)
“a little wing; a wing-like part”
Ancient Greek
GRK
pteryx (πτέρυξ)
“wing; feather”
Late Latin
LAT
pterygium
“a wing-like growth or appendage”
16th Century
EN
pterigium / pterygium
“a wing-like anatomical term borrowed from learned Latin and Greek”
Modern English
EN
pterygium
“a wing-shaped growth, especially on the eye”
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