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pterygium

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pterygium /pte·ryg·i·um/ (te-rij´e-um) pl. ptery´gia   [Gr.] a winglike structure, especially an abnormal triangular fold of membrane in the interpalpebral fissure, extending from the conjunctiva to the cornea.
pterygium col´li  webbed neck; a thick skin fold on the side of the neck from the mastoid region to the acromion.
pte·ryg·i·um (t-rj-m)
n. pl. pte·ryg·i·ums or pte·ryg·i·a (--)
An abnormal mass of tissue arising from the conjunctiva of the inner corner of the eye that obstructs vision by growing over the cornea.
pte·rygi·al adj.
pterygium
a winglike structure, especially an abnormal triangular fold of membrane in the interpalpebral fissure, extending from the conjunctiva to the cornea.
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