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.

Word History and Origins

Origin of choroid coat¹

First recorded in 1735–45

Example Sentences

The retina is dark purple in color, this color being caused by a layer of cells next to the choroid coat.

From Project Gutenberg

It is found directly behind the iris and is attached to the choroid coat by means of delicate ligaments.

From Project Gutenberg

Their external border is continuous with the internal layer of the choroid coat.

From Project Gutenberg

Take out both the lens and the iris and the choroid coat of the eye will reproduce both.

From Project Gutenberg

The pigmented layer of the choroid coat represents this blackened lining.

From Project Gutenberg