from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A thickened portion of the vascular tunic of the eye located between the choroid and the iris.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. circumferential tissue inside the eye composed of the ciliary muscle and ciliary processes
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the part of the tunic of the eye between the choroid coat and the iris
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