retinal
adjective
ˈret-nəl\
Definition of retinal
(Entry 1 of 2)
: of, relating to, involving, or being a retina
retinal
noun
-ˌnȯl\
Definition of retinal (Entry 2 of 2)
: 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
Examples of retinal in a Sentence
Recent Examples on the Web: Adjective
Eventually, prolonged bleeding from damaged retinal blood vessels can cause floating spots in a person’s vision, which may or may not clear up then reappear. — Korin Miller, SELF, "This Is How Diabetes Can Affect Your Eyes," 8 Nov. 2018 Akka suggests using retinal scanning after passengers board the train en route to the airport. — Jay Bennett, Popular Mechanics, "This Flying Train Is as Wild As It Sounds," 13 July 2018 In followup periods that lasted four to 12 months, the researchers watched as the implants' stem cells stayed put and successfully integrated with the patients' own retinal tissue. — Melissa Healy, latimes.com, "This retinal implant may one day cure blindness caused by macular degeneration," 5 Apr. 2018 Before releasing it, Google had three retinal specialists furiously debate the early research results, Dean said. — Mark Bergen, chicagotribune.com, "Google is training machines to predict when a patient will die," 25 June 2018 Before releasing it, Google had three retinal specialists furiously debate the early research results, Dean said. — Mark Bergen, ajc, "Google is training machines to predict when a patient will die," 23 June 2018 Before releasing it, Google had three retinal specialists furiously debate the early research results, Dean said. — Mark Bergen, latimes.com, "Google is training machines to predict when a patient will die," 18 June 2018 The features most commonly used to identify people are faces, voices, finger prints and retinal scans. — The Economist, "The way people walk can be used for ID and health checks," 12 July 2018 Johnson’s practice utilizes retinal imaging technology. — Francine Knowles, Daily Southtown, "Knowles: Southland optometrist focuses on fighting diabetes," 3 July 2018Recent Examples on the Web: 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, "Milia: What They Are, and How to Remove Them," 8 Oct. 2017These example sentences are selected automatically from various online news sources to reflect current usage of the word 'retinal.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
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More Definitions for retinal
retinal
adjective
\
Medical Definition of retinal
(Entry 1 of 2)
: of, relating to, involving, or being a retina a retinal examination retinal rods
retinal
noun
-ˌȯl
\
Medical Definition of retinal (Entry 2 of 2)
: 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
— called also
retinene, retinene1, vitamin A aldehyde
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