choroid

choroid Definition

cho·roid (kôr′o̵id′)

adjective

designating or of the chorion or certain other vascular membranes

Etymology: Gr choroeidēs, contr. < chorioeidēs < chorion, chorion + -eidēs, -oid

noun

the dark, vascular membrane that forms the middle coat of the eye, between the sclera and the retina

choroid Usage Examples

Converse of object

call: The middle layer called the Choroid can be seen injected black with Indian ink.

Modifies a noun

plexus: The CSF is made in a part of the brain called the choroid plexus.
cyst: They have a routine antenatal ultrasound scan at 20 weeks, which reveals the presence of choroid plexus cysts.
tumor: AB - Choroid plexus tumors are rare intraventricular tumors, and they represent 2-4 % of brain tumors in children.

Noun used with modifier

rat: Two types of potassium current in rat choroid plexus epithelial cells.
bullfrog: Regulation of bicarbonate transport across the brush border membrane of the bullfrog choroid plexus.

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