from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The vascular middle layer of the eye constituting the iris, ciliary body, and choroid.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The middle of the three concentric layers that make up the eye; it is pigmented and vascular, and comprises of the choroid, the ciliary body, and the iris.
from the GNU version of the Collaborative International Dictionary of English
- n. The posterior pigmented layer of the iris; -- sometimes applied to the whole iris together with the choroid coat.
from The Century Dictionary and Cyclopedia
- n. The vascular tunic of the eye; the iris, ciliary body, and choroid taken collectively. Also called tunica uvea and uveal tract.
- n. The dark choroid coat of the eye. See cut under eye.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the part of the eye that contains the iris and ciliary body and choroid
Medieval Latin ūvea, from Latin ūva, grape.(American Heritage® Dictionary of the English Language, Fourth Edition)