noun, plural pte·ryg·i·ums, pte·ryg·i·a [tuh-rij-ee-uh] /təˈrɪdʒ i ə/. Ophthalmology.
Origin of pterygium
Examples from the Web for pterygium
Historical Examples of pterygium
Pterygium: a lateral expansion of the snout of some Coleoptera.Explanation of Terms Used in Entomology
John. B. Smith
Pterygium should be removed when advancing across the cornea, especially when the pupillary area is becoming involved.
The base of the pterygium was then severed with the scalpel for the plastic operation on entropion.
Albucasis, who conveys entire the passage on pterygium from Paul, gives figures of both these instruments.
Tension being made on the thread by an assistant, the operator sawed off the pterygium towards the apex by means of the horsehair.