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choroid coat

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choroid coat

–noun Ophthalmology.
a pigmented, highly vascular membrane of the eye that is continuous with the iris and lies between the sclera and the retina, functioning to nourish the retina and absorb scattered light.
Also called choroid, choroid membrane.


Origin:
1735–45
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To choroid coat
cho·roid   (kôr'oid', kōr'-)   
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.]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Medical Dictionary

Main Entry: choroid coat
Function: noun
: CHOROID
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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