choroid coat

American  

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.

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Etymology

Origin of choroid coat

First recorded in 1735–45

Example Sentences

See Examples For:

choroid coat

Light enters the front of the eye through a hole in the choroid coat called the pupil.

From Textbooks ● Jan. 1, 2015

Near where the sclerotic coat joins the cornea, the choroid coat separates from the outer wall and, by folding, forms many slight projections into the interior space.

From Physiology and Hygiene for Secondary Schools by Walters, Francis M.

The choroid coat lies immediately beneath the sclerotic coat at all places except a small margin toward the front of the eyeball.

From Physiology and Hygiene for Secondary Schools by Walters, Francis M.

Of what is the choroid coat chiefly composed?

From A Treatise on Anatomy, Physiology, and Hygiene (Revised Edition) by Cutter, Calvin

The choroid coat will be recognized as the black layer lying subjacent to the sclerotic.

From Special Report on Diseases of Cattle by United States. Bureau of Animal Industry