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.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use choroid coat in a sentence
The retina is dark purple in color, this color being caused by a layer of cells next to the choroid coat.A Civic Biology | George William Hunter
It is found directly behind the iris and is attached to the choroid coat by means of delicate ligaments.A Civic Biology | George William Hunter
Their external border is continuous with the internal layer of the choroid coat.A Treatise on Anatomy, Physiology, and Hygiene (Revised Edition) | Calvin Cutter
Take out both the lens and the iris and the choroid coat of the eye will reproduce both.Preventable Diseases | Woods Hutchinson
The pigmented layer of the choroid coat represents this blackened lining.A Practical Physiology | Albert F. Blaisdell