choroid


Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.
Related to choroid: choroid coat, choroid plexus, ciliary body, optic disk, Choroid Plexus Carcinoma

cho·roid

 (kôr′oid′) or cho·ri·oid (kôr′ē-oid′)
n.
The dark-brown vascular coat of the eye between the sclera and the retina. Also called choroid coat, choroid membrane.
adj.
1. Resembling the chorion; membranous.
2. Of or relating to the choroid.

[From Greek khoroeidēs, like an afterbirth, alteration of khorioeidēs : khorion, afterbirth; see chorion + -oeidēs, -oid.]

choroid

(ˈkɔːrɔɪd) or

chorioid

adj
(Anatomy) resembling the chorion, esp in being vascular
n
(Anatomy) the brownish vascular membrane of the eyeball between the sclera and the retina
[C18: from Greek khoroeidēs, erroneously for khorioeidēs, from chorion]

cho•roid

(ˈkɔr ɔɪd, ˈkoʊr-)
adj.
1. Also, cho•roi′dal. like the chorion; membranous.
n.
[1625–35; < Greek choroeidḗs false reading for chorioeidḗs; see chorion, -oid]

choroid

The eyeball’s dark middle layer.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.choroid - a highly vascular membrane in the eye between the retina and the sclerachoroid - a highly vascular membrane in the eye between the retina and the sclera; a dark pigmentation minimizes the scattering of light inside the eye
eye, oculus, optic - the organ of sight
tissue layer, membrane - a pliable sheet of tissue that covers or lines or connects the organs or cells of animals or plants
Translations
suonikalvo
naczyniówka

choroid

[ˈkɔːrɔɪd] n (Anat) → coroide f

cho·roid

n. coroides, membrana situada en el ojo al que nutre con la sangre.
References in periodicals archive ?
Non-Infectious Uveitis is an inflammatory process affecting the retina and/or the choroid layer of the eye.
The disease is characterized by an abnormally elongated eye with a physical stretching of the sclera, choroid and retina, resulting in degenerative and progressive changes.
Using 532nm green laser and 780nm infrared laser, the EasyScan produces images of the inner retina and a deeper view down to the choroid.
About Ocular (Uveal) Melanoma According to the National Cancer Institute, ocular (uveal) melanoma is a rare cancer that forms from cells that make melanin in the iris, ciliary body, and choroid.
Hanna was diagnosed with choroid plexus carcinoma - a cancer that presents as a fast-growing brain tumour.
Positivity was intense in choroid plexus cells, inner and outer glia limitans, and leptomeninges and was moderate in ependymocytes and the perivascular endfeet.
Researchers from University of Iowa developed a most detailed map to date of the abundance of thousands of proteins in the choroid, a region of the human eye long associated with blinding diseases.
The map catalogs more than 4,000 proteins in each of three areas of the choroid.
For example, dilution of a drug by tears, clearance of a drug by the lymphatic system of conjunctiva, drug permeation issues with respect to the cornea, sclera, choroid etc.
In non-clinical pharmacokinetic and pharmacodynamic studies topical administration of PAN-90806 achieved significant and sustained levels in the retina and choroid, and demonstrated the ability to suppress abnormal choroidal and retinal neovascularization in animal models, supporting further investigation of PAN-90806.
There are reports in the literature of successful management of hydrocephalus in these patients with ETV combined with choroid plexus cauterisation, particularly in the Third World setting, where reliable access to follow-up for VPS and management of the possible complications may not exist.
The disorder, caused mainly by a mutation in the CHM gene on the X chromosome, leads to cellular degeneration in the retina and choroid.