the part of the tunic of the eye, between the choroid coat and the iris, consisting chiefly of the ciliary muscle and the ciliary processes.
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the part of the vascular tunic of the eye that connects the choroid with the iris
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
A thickened portion of the vascular tunic of the eye located between the choroid and the iris.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.