retinal

¹

[ret-n-uhl]

adjective

1. of or relating to the retina of the eye.

retinal

²

Also ret·i·nene

[ret-n-al, -awl]

noun

Biochemistry.

1. an orange pigment, C 2 0 H 2 8 O, that is the active component of rhodopsin and is liberated upon the absorption of light in the vision cycle; vitamin A aldehyde.

Word History and Origins

Origin of retinal¹

First recorded in 1830–40; retin(a) + -al ¹

Origin of retinal²

First recorded in 1940–45; retin(a) + -al ³

Example Sentences

A doctor who examined the child told police the girl had “intracranial hemorrhage, brain injury, cervical spine injury and retinal hemorrhages” and other injuries, the affidavit said.

From Los Angeles Times

Looking at the Sun without protection can cause permanent retinal damage and blindness, even after just a few seconds of exposure.

From BBC

These copies are contained inside a harmless virus, which goes through the retinal cells and replaces the defective gene.

From BBC

The retina, a light-sensitive tissue at the back of the eye, consumes more oxygen than any other tissue in the body and relies on the retinal pigment epithelium cell layer to function properly.

From Science Daily

Their results, published in Science Translational Medicine, show the promise that mRNA-based therapies may one day offer patients with PVR and other retinal conditions.

From Science Daily