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choroid

[kawr-oid, kohr-]Anatomy
adjective
  1. like the chorion; membranous.
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noun
  1. choroid coat.
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Also cho·roi·dal, chorioid, chorioidal.

Origin of choroid

1625–35; < Greek choroeidḗs false reading for chorioeidḗs chorioid
Related formspre·cho·roid, adjectivesub·cho·roid, adjectivesub·cho·roi·dal, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for choroidal

Historical Examples

  • She suffered, we afterwards concluded, from choroidal tuberculosis.

    Glaucoma

    Various

  • There was a corresponding increase in the choroidal pigment of the eye.

    Darwin and Modern Science

    A.C. Seward and Others

  • There was extensive damage to both eyes, hæmorrhage, and probably retinal detachment as well as choroidal changes.

  • Blood may also be effused into the vitreous from rupture of retinal, ciliary or choroidal vessels.


British Dictionary definitions for choroidal

choroid

chorioid (ˈkɔːrɪˌɔɪd)

adjective
  1. resembling the chorion, esp in being vascular
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noun
  1. the brownish vascular membrane of the eyeball between the sclera and the retina
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Word Origin

C18: from Greek khoroeidēs, erroneously for khorioeidēs, from chorion
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for choroidal

choroid

adj.

1680s, from Latinized form of Greek khoroeides, a corruption of khorioeides, from khorion (see chorion) + eidos "resemblance" (see -oid).

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Online Etymology Dictionary, © 2010 Douglas Harper

choroidal in Medicine

choroidal

(kə-roidl, kô-)
adj.
  1. Of or relating to the choroid.
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choroid

(kôroid′)
n.
  1. The dark-brown vascular coat of the eye between the sclera and the retina.
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adj.
  1. Relating to the chorion or corium.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

choroidal in Science

choroid

[kôroid′]
Noun
  1. The dark-brown vascular coat of the eye between the sclera and the retina.
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Adjective
  1. Resembling the chorion; membranous.
  2. Relating to or involving the choroid of the eye.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.