choroid coat

noun Ophthalmology.
  1. 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.

Origin of choroid coat

First recorded in 1735–45
Also called choroid, choroid membrane.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018