retinal

[ ret-n-uhl ]

/ ˈrɛt n əl /

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adjective

of or relating to the retina of the eye.

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Origin of retinal

First recorded in 1830–40; retin(a) + -al¹

Words nearby retinal

retinaculum of fibular muscles, retinaculum of flexor muscles, retinaculum of peroneal muscles, retinaculum of skin, retinaculum tendinum, retinal, retinal adaptation, retinal cone, retinaldehyde, retinaldehyde isomerase, retinal detachment

Definition for retinal (2 of 2)

retinal²

[ ret-n-al, -awl ]

/ ˈrɛt nˌæl, -ˌɔl /

noun Biochemistry.

an orange pigment, C20H28O, that is the active component of rhodopsin and is liberated upon the absorption of light in the vision cycle; vitamin A aldehyde.

Also ret·i·nene

[ret-n-een]. /ˈrɛt nˌin/.

Origin of retinal

First recorded in 1940–45; retin(a) + -al³

Example sentences from the Web for retinal

To complement brain wiring, everyone walks around with retinal cams.
The Internet Embedded in Your Head|J.T. Price|November 21, 2014|DAILY BEAST
He saw Andy as his comrade in anti-retinal and utterly abnormal art.
Warhol Looks at Duchamp Looking at Warhol|Blake Gopnik|January 6, 2014|DAILY BEAST
What could come closer to the anti-retinal position of Duchamp than paintings so dark they can barely impinge on our retinas?
Ad Reinhardt's Black (-on-Black) Humor|Blake Gopnik|December 2, 2013|DAILY BEAST
In order then to avoid diplopia the macula lutea moves to where the retinal image is formed.
Schweigger on Squint|C. Schweigger

Single vision was also present when looking strongly to one side, and with differentiation of one retinal image by a red glass.
Schweigger on Squint|C. Schweigger
This is generally accounted for by fatigue of the retinal process.
Visual Illusions|Matthew Luckiesh
The retinal image of the object is not only vague, but also distorted.
Clever Hans|Oskar Pfungst
Retinal hmorrhages are frequent and usually small, but a considerable hmorrhage may take place into the vitreous.
A System of Operative Surgery, Volume IV (of 4)|Various

Medical definitions for retinal

retinal

[ rĕt′n-ăl′, -ôl′ ]

n.

retinaldehyde

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retinal

adjective

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Origin of retinal

Words nearby retinal

Definition for retinal (2 of 2)

noun Biochemistry.

Origin of retinal

Example sentences from the Web for retinal

Medical definitions for retinal

n.