choroid Anatomy [ 'kɔ:rɔɪd , 'kɒr- ]
■ adjective resembling the chorion, particularly in containing many blood vessels.
■ noun (also choroid coat ) the pigmented vascular layer of the eyeball between the retina and the sclera.
Derivatives
choroidal adjective
Origin
C17: from Gk khoroeidēs , from khorion (see chorion ).