from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The dark-brown vascular coat of the eye between the sclera and the retina. Also called choroid coat, choroid membrane.
- adj. Resembling the chorion; membranous.
- adj. Of or relating to the choroid.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The vascular layer of the eye lying between the retina and the sclera.
from the GNU version of the Collaborative International Dictionary of English
- adj. resembling the chorion.
from The Century Dictionary and Cyclopedia
- Membranous, as a chorion; like or likened to the chorion, as an investing part or tunic: in anatomy, applied to several delicate, highly vascular membranes which invest certain parts, and to associated structures.
- n. A delicate, highly vascular membrane forming one of the coats or tunics of the eyeball, lining the sclerotic, and lying between it and the retina, with which it is in contact by its inner surface.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a highly vascular membrane in the eye between the retina and the sclera; a dark pigmentation minimizes the scattering of light inside the eye
From Greek khoroeidēs, like an afterbirth, alteration of khorioeidēs : khorion, afterbirth; see chorion + -oeidēs, -oid.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Ancient Greek χοριον + ειδος ("resembling skin"). (Wiktionary)