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Uvea
Pronunciation
Definition 1
The middle layer of the wall of the eye. The uvea has 3 main parts: (1) the choroid (the tissue layer filled with blood vessels); (2) the ciliary body (the ring of muscle tissue that changes the size of the pupil and the shape of the lens); and (3) the iris (the colored part of the eye). Also called uveal tract. (NCI Dictionary)
Definition 2
The pigmented layer of the eyeball between the tough, white outer coat of the eye and the retina. (NCI Thesaurus)
Definition 3
The pigmented vascular coat of the eyeball, consisting of the CHOROID, CILIARY BODY, and IRIS, which are continuous with each other. (Cline et al., Dictionary of Visual Science, 4th ed) (NLM, Medical Subject Headings)
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