pterygium

(tə rij′ē əm)

an abnormal, triangular mass of mucous membrane growing over the human cornea from the inner corner of the eye

Origin: ModL < Gr pterygion, dim. of pteryx, wing, akin to pteron, feather

Related Forms:

See pterygium in American Heritage Dictionary 4

noun pl. pte·ryg·i·ums or pte·ryg·i·a (-ē-ə)

An abnormal mass of tissue arising from the conjunctiva of the inner corner of the eye that obstructs vision by growing over the cornea.

Origin:

Origin: New Latin

Origin: , from Greek pterugion

Origin: , diminutive of pterux, pterug-, wing; see pterygoid

Related Forms:

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