choroid

[ kawr-oid, kohr- ]

adjective

1. like the chorion; membranous.

noun

1. choroid coat.

choroid

/ ˈkɔːrɪˌɔɪd; ˈkɔːrɔɪd /

adjective

1. resembling the chorion, esp in being vascular

noun

1. the brownish vascular membrane of the eyeball between the sclera and the retina

choroid

/ kôr′oid′ /

Noun

1. The dark-brown vascular coat of the eye between the sclera and the retina.

Adjective

1. Resembling the chorion; membranous.
2. Relating to or involving the choroid of the eye.

Other Words From

• pre·choroid adjective
• sub·choroid adjective
• subcho·roidal adjective

Word History and Origins

Origin of choroid¹

1625–35; < Greek choroeidḗs false reading for chorioeidḗs chorioid

Word History and Origins

Origin of choroid¹

C18: from Greek khoroeidēs, erroneously for khorioeidēs, from chorion

Example Sentences

Perhaps the mode of formation of the vitreous humour in Mammalia may be correlated with the early closing of the choroid slit.

From Project Gutenberg

On the internal surface of the sclerotic is a vascular membrane called the choroid.

From Project Gutenberg

This notch is the only rudiment of the choroid fissure of other types.

From Project Gutenberg

A second coat, the choroid, is supplied with blood vessels and cells which bear pigments.

From Project Gutenberg

The retina is dark purple in color, this color being caused by a layer of cells next to the choroid coat.

From Project Gutenberg