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retinal

1 of 2

adjective

ret·​i·​nal ˈre-tə-nəl How to pronounce retinal (audio)
ˈret-nəl
: of, relating to, involving, or being a retina

retinal

2 of 2

noun

ret·​i·​nal ˈre-tə-ˌnal How to pronounce retinal (audio)
-ˌnȯl
: a yellowish to orange aldehyde C20H28O derived from vitamin A that in combination with proteins forms the visual pigments of the retinal rods and cones

Example Sentences

Recent Examples on the Web
Adjective
Although Sue lives with the same retinal disease as her mother, Alice, the decades separating their diagnoses made all the difference. Forbes, 5 July 2022 Born in San Francisco in 1932, Cantwell was diagnosed with tuberculosis as well as a partial retinal detachment in his youth. Ryan Parker, The Hollywood Reporter, 22 May 2022 Read on for our favorite gentle-yet-effective retinal serum, a great leave-in conditioner for 4C hair, and more. ELLE, 15 Apr. 2022 Among mammals, only some primates have three types of retinal cones. Max G. Levy, Wired, 7 Feb. 2022 Some notable examples of biometric data include fingerprints, retinal scans, facial recognition, typing cadence, voice patterns, signatures, DNA scans and behavioral patterns such as web search histories. Jonathan Herpy, Forbes, 5 Apr. 2021 The active ingredient, pilocarpine, is one of a class of drugs called miotics, which pose some risk of retinal detachment (although no one had that problem in the clinical trials, says Dr. Chu). Steven Odierna As Told To Stephanie Dolgoff, Good Housekeeping, 9 Mar. 2022 Prosecutors say the infant sustained a brain bleed, retinal hemorrhaging, and fractures to both his legs that required the child to be hospitalized at Stony Brook Hospital. Jeff Truesdell, PEOPLE.com, 28 Feb. 2022 In other words: An epidemic of myopia could lead to an epidemic of retinal detachment, glaucoma, and the early development of cataracts. Fortune, 12 Jan. 2022
Noun
Using gentle microdermabrasion scrubs, retinals, and other exfoliation-boosting products can help prevent them, as does avoiding using heavy creams and makeup. Amanda Chan, Teen Vogue, 8 Oct. 2017 See More

Word History

Etymology

Noun

retin- + -al entry 3

First Known Use

Adjective

1798, in the meaning defined above

Noun

1944, in the meaning defined above

Time Traveler
The first known use of retinal was in 1798

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