pterygium
[tĕ-rij´e-um] a winglike structure, especially an abnormal triangular fold of membrane in the interpalpebral fissure, extending from the conjunctiva to the cornea.

Pterygium. From Stein et al., 2000.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
pte·ryg·i·um col·'li
a congenital, usually bilateral, web or tight band of skin of the neck extending from the acromion to the mastoid process seen in Turner syndrome and Noonan syndrome.
Farlex Partner Medical Dictionary © Farlex 2012
pte·ryg·i·um col·li
(tĕr-ijē-ŭm kolī) Congenital, usually bilateral, web or tight band of skin of the neck extending from acromion to mastoid process.
Medical Dictionary for the Dental Professions © Farlex 2012