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Purpurogenous :: Purpurogenous (a.) Having the power to produce a purple color; as, the purpurogenous membrane, or choroidal epithelium, of the eye. See Visual purple, under Visual..

Tapetum :: Tapetum (n.) An area in the pigmented layer of the choroid coat of the eye in many animals, which has an iridescent or metallic luster and helps to make the eye visible in the dark. Sometimes applied to the whole layer of pigmented epithelium of the choroid..

Suprachoroidal :: Suprachoroid (a.) Alt. of Suprachoroida.

Ciliary :: Ciliary (a.) Pertaining to the cilia, or eyelashes. Also applied to special parts of the eye itself; as, the ciliary processes of the choroid coat; the ciliary muscle, etc..

Choroidal :: Choroidal (a.) Pertaining to the choroid coat.

Uvea :: Uvea (n.) The posterior pigmented layer of the iris; -- sometimes applied to the whole iris together with the choroid coat.

Melanin :: Melanin (n.) A black pigment found in the pigment-bearing cells of the skin (particularly in the skin of the negro), in the epithelial cells of the external layer of the retina (then called fuscin), in the outer layer of the choroid, and elsewhere. It is supposed to be derived from the decomposition of hemoglobin..

Supraciliary :: Suprachoroidal (a.) Situated above the choroid; -- applied to the layer of the choroid coat of the eyeball next to the sclerotic.

Choroid :: Choroid (a.) resembling the chorion; as, the choroid plexuses of the ventricles of the brain, and the choroid coat of the eyeball..

Choroid :: Choroid (n.) The choroid coat of the eye. See Eye.

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