The Collaborative International Dictionary of English v.0.48:
Uvea \U"ve*a\, n. [NL., fr. L. uva grape.] (Anat.) The posterior pigmented layer of the iris; -- sometimes applied to the whole iris together with the choroid coat. [1913 Webster]WordNet (r) 3.0 (2006):
uvea n 1: the part of the eye that contains the iris and ciliary body and choroid