choroid noun & adjective. ['kɔ:rɔɪd, 'kɒr-] M17.
[Greek khoroeidēs adjective, for khorioeidēs, formed as CHORION + -OID.]
Anatomy.
A. noun. The pigmented vascular layer of the eyeball, situated between the retina and the sclera. M17.
b. adjective. Resembling the chorion; choroidal. M18.
choroid coat, choroid membrane = CHOROID noun. choroid plexus a network of blood-vessels in each ventricle of the brain.

■ cho'roidal adjective of or pertaining to the choroid of the eye or the choroid plexus of the brain L17.

■ choroi'ditis noun inflammation of the choroid M19.

[TahlilGaran] English Dictionary ▲