from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The tough white fibrous outer envelope of tissue covering all of the eyeball except the cornea. Also called sclerotic, sclerotic coat.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The white of the eye. It is the tough outer coat of the eye that covers the eyeball except for the cornea.
from The Century Dictionary and Cyclopedia
- n. The sclerotic coat of the eyeball.
- n. The test of the crustaceans, especially those parts of the test which separate the corneal lenses in aggregated schizochroal eyes.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the whitish fibrous membrane (albuginea) that with the cornea forms the outer covering and protection of the eyeball
New Latin, from Greek, feminine of sklēros, hard.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Ancient Greek σκληρός (sklēros, "hard"). (Wiktionary)