photoreceptor

noun

pho·​to·​re·​cep·​tor ˌfō-tō-ri-ˈsep-tər How to pronounce photoreceptor (audio)
: a receptor for light stimuli

Examples of photoreceptor in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Degradation of these photoreceptors is the leading cause of vision impairments, including blindness. ArsTechnica, 12 June 2025 The disease causes the breakdown of light-sensitive cells called photoreceptors in the retina, leading to progressively declining vision and eventually the loss of central vision entirely. Michael Franco, New Atlas, 11 June 2025 These photoreceptors are located in the back of the eye on the retina. Monica Cull, Discover Magazine, 22 Apr. 2025 Rods are the photoreceptors responsible for scotopic, or low-light, vision. Melissa Cristina Márquez, Forbes.com, 14 May 2025 See All Example Sentences for photoreceptor

Word History

First Known Use

1906, in the meaning defined above

Time Traveler
The first known use of photoreceptor was in 1906

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Cite this Entry

“Photoreceptor.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/photoreceptor. Accessed 2 Jul. 2025.

Medical Definition

photoreceptor

noun
pho·​to·​re·​cep·​tor -ˈsep-tər How to pronounce photoreceptor (audio)
: a receptor for light stimuli

More from Merriam-Webster on photoreceptor

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