retina

noun

ret·i·na ˈre-tə-nə How to pronounce retina (audio)

ˈret-nə

plural retinas also retinae ˈre-tə-ˌnē How to pronounce retina (audio)

-ˌnī

: the sensory membrane that lines the eye, is composed of several layers including one containing the rods and cones, and functions as the immediate instrument of vision by receiving the image formed by the lens and converting it into chemical and nervous signals which reach the brain by way of the optic nerve see eye illustration

Example Sentences

Recent Examples on the Web The injections stanch the growth of abnormal, leaky blood vessels that grow under the macula region of the retina, which is responsible for clear central vision.

Ron Winslow, WSJ, 4 Sep. 2022 Who can fault an emergency room physician for an AI algorithm that misses papilledema—a swelling of the retina?

George Maliha, Scientific American, 29 June 2022 The authentication can also come from a fingerprint or retina scan, neither of which ever leave the end-user device to prevent the biometrics from being stolen.

Dan Goodin, Ars Technica, 12 July 2022 And by the time people from historically underrepresented groups are seen by a retina specialist, their condition has often progressed to a more advanced stage.

Forbes, 5 July 2022 He was referred to a retina specialist after that surgery, who told him the best option would be to remove his eye.

Chloe Peterson, The Arizona Republic, 27 June 2022 The scientists were able to prove that photosensitive neuron cells in the retina can respond to light up to five hours after death.

Joshua Hawkins, BGR, 16 May 2022 Or the sensation in the retina when a ray of sunlight slips between mountain peaks and illuminates a high-altitude landscape.

Los Angeles Times, 12 May 2022 Although painless and often no cause for alarm, such symptoms can signal a tear in the retina, the layer of tissue at the back of the eye that processes light and sends images to the brain.

Laura Landro, WSJ, 16 Apr. 2022 See More

Medical Definition

retina 1 of 2

noun

ret·i·na ˈret-ᵊn-ə, ˈret-nə How to pronounce retina (audio)

plural retinas also retinae -ᵊn-ˌē How to pronounce retina (audio)

: the sensory membrane that lines most of the large posterior chamber of the vertebrate eye, is composed of several layers including one containing the rods and cones, and functions as the immediate instrument of vision by receiving the image formed by the lens and converting it into chemical and nervous signals which reach the brain by way of the optic nerve

Retin-A

2 of 2

trademark

Ret·in-A ˌret-ᵊn-ˈā How to pronounce Retin-A (audio)

—used for a preparation of tretinoin

单词	retina
释义	retina noun ret·i·na ˈre-tə-nə ˈret-nə plural retinas also retinae ˈre-tə-ˌnē -ˌnī : the sensory membrane that lines the eye, is composed of several layers including one containing the rods and cones, and functions as the immediate instrument of vision by receiving the image formed by the lens and converting it into chemical and nervous signals which reach the brain by way of the optic nerve see eye illustration Example Sentences Recent Examples on the Web The injections stanch the growth of abnormal, leaky blood vessels that grow under the macula region of the retina, which is responsible for clear central vision. Ron Winslow, WSJ, 4 Sep. 2022 Who can fault an emergency room physician for an AI algorithm that misses papilledema—a swelling of the retina? George Maliha, Scientific American, 29 June 2022 The authentication can also come from a fingerprint or retina scan, neither of which ever leave the end-user device to prevent the biometrics from being stolen. Dan Goodin, Ars Technica, 12 July 2022 And by the time people from historically underrepresented groups are seen by a retina specialist, their condition has often progressed to a more advanced stage. Forbes, 5 July 2022 He was referred to a retina specialist after that surgery, who told him the best option would be to remove his eye. Chloe Peterson, The Arizona Republic, 27 June 2022 The scientists were able to prove that photosensitive neuron cells in the retina can respond to light up to five hours after death. Joshua Hawkins, BGR, 16 May 2022 Or the sensation in the retina when a ray of sunlight slips between mountain peaks and illuminates a high-altitude landscape. Los Angeles Times, 12 May 2022 Although painless and often no cause for alarm, such symptoms can signal a tear in the retina, the layer of tissue at the back of the eye that processes light and sends images to the brain. Laura Landro, WSJ, 16 Apr. 2022 See More Word History Etymology Middle English rethina, from Medieval Latin retina, probably from Latin rete net First Known Use 14th century, in the meaning defined above Kids Definition retina noun ret·i·na ˈre-tə-nə plural retinas also retinae -ˌnē : the membrane that lines the back part of the eyeball, contains the rods and cones, and converts the images received by the lens into signals that are transmitted to the brain Medical Definition retina 1 of 2 noun ret·i·na ˈret-ᵊn-ə, ˈret-nə plural retinas also retinae -ᵊn-ˌē : the sensory membrane that lines most of the large posterior chamber of the vertebrate eye, is composed of several layers including one containing the rods and cones, and functions as the immediate instrument of vision by receiving the image formed by the lens and converting it into chemical and nervous signals which reach the brain by way of the optic nerve Retin-A 2 of 2 trademark Ret·in-A ˌret-ᵊn-ˈā —used for a preparation of tretinoin
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retina

noun

Example Sentences

Word History

Kids Definition

noun

Medical Definition

noun

trademark