Definition of retinal
: of, relating to, involving, or being a retina
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Recent Examples of retinal from the Web
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Some drugs have hit the $1 million mark, including a gene therapy, Luxturna, that can restore sight to children with a rare retinal disease and might cost $1 million.
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Born prematurely, the child was placed in an incubator for two months and developed a degenerative retinal disease apparently caused by excessive oxygen.
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Born prematurely, Brooks was placed in an incubator for two months and developed a degenerative retinal disease apparently caused by excessive oxygen.
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There are over 260 genes in which a mutation can give rise to retinal problems.
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And at Harvard, stem cell biologist Paola Arlotta (also one of the essay's authors) grew 31 human brain organoids over periods as long as nine months and watched as pluripotent stem cells gave rise to human retinal cells alongside other brain cells.
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But in recent years, new molecular analyses have revealed types of tissue researchers previously missed, including two new types of retinal cells and a new immune cell that produces an immune-surpressing steroid.
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These are being tested to restore vision in people who are blind because of retinal damage.
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Advanced dry macular degeneration has blind areas where there is a dropout of the normal retinal cells.
These 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.
First Known Use of retinal
1798
Definition of retinal
: 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
Recent Examples of retinal from the Web
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Using gentle microdermabrasion scrubs, retinals, and other exfoliation-boosting products can help prevent them, as does avoiding using heavy creams and makeup.
These 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.
Origin and Etymology of retinal
Medical Dictionary
medical Definition of retinal
: 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
Learn More about retinal
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See words that rhyme with retinal Britannica.com: Encyclopedia article about retinal
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