choroid

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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.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

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]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

choroid

The eyeball’s dark middle layer.
Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited
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
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations
suonikalvo
naczyniówka

choroid

[ˈkɔːrɔɪd] n (Anat) → coroide f
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995

cho·roid

n. coroides, membrana situada en el ojo al que nutre con la sangre.
English-Spanish Medical Dictionary © Farlex 2012
References in periodicals archive ?
Most of the retinas and choroids were significantly thicker in the SDT rats than in the normal SD rats, but there were no significant differences in the INL and choroidal thicknesses 500 [micro]m from the optic nerve disc.
Main posterior watershed zone of the choroids. Doc Ophthalmol.
Patients exhibit hyperactivity of sympathetic system.6 Adrenergic hormones and glucocorticoids play a role in the pathogenesis of CSCR by their effects on RPE and choroids.7
The retinal pigment epithelium (RPE) is a highly specialized tissue located between the choroids and the neural retina.
Other findings include inner epicanthic folds, telecanthus, strabismus, corneal clouding, cataracts, and coloboma of the eyelids, choroids, or optic nerve.
On day 1, experimental eyes exposed to 2.00D hyperopic retinal defocus developed progressively thinner choroids (SFCT at baseline = 253 [+ or -] 32 [micro]m versus SFCT at 60 minutes = 245 [+ or -] 31 [micro]m; PFCT at baseline = 252 [+ or -] 30 [micro]m versus PFCT at 60 minutes = 245 [+ or -] 30 [micro]m).
The optomap image is not true colour as it is made up by the reflection of red and green light; due to chromatic aberration, red light is reflected back from the anterior layers of the retina, while green light is reflected by the deeper layers of the retina and the choroid. This means that if you look at a red-free image on an optomap you see the choroids, while the green-free image allows you to see the retina.
Other sites are the nasopharynx, maxillary sinus, thyroid gland, soft tissues of the anterior cervical region, parotid gland, tonsil, oropharynx, larynx, orbit, and choroids of the eye and eyelid.
[12] thought that amblyopia affected the process of postnatal maturation of the choroids and that amblyopia was associated with changes in choroidal function in humans.
They discovered evidence of proteins expressed by the SERPING1 gene and the choroids layer--the vascular layer next to the retina--the two areas affected by AMD.
[25] found that no significant differences were detected in HAS2 mRNA in choroids of form-deprived eyes compared with the controls in chicks after 10 days of visual deprivation, but HAS2 expression significantly elevated in form-deprived eyes during recovery period.