pho·​to·​re·​cep·​tor | \ ˌfō-tō-ri-ˈsep-tər How to pronounce photoreceptor (audio) \

Definition of photoreceptor

: a receptor for light stimuli

Examples of photoreceptor in a Sentence

Recent Examples on the Web But other experts argued that people used their experience to infer what a scene was supposed to look like—no photoreceptors involved. Nicole Wetsman, Popular Science, "These strawberries aren’t red. Here’s why your brain is sure they are.," 24 Apr. 2020 Because the treatment is narrowly targeted to cells that perceive light, known as photoreceptors, any unintended gene edits should not cause widespread problems, Albright says. Karen Weintraub, Scientific American, "Despite Controversy, Human Studies of CRISPR Move Forward in the U.S.," 13 Aug. 2019 The starfish relatives can recognize patterns using photoreceptors on their arms—and their color-changing abilities could have something to do with it. Christopher Intagliata reports. Christopher Intagliata, Scientific American, "Brittle Stars Can 'See' Without Eyes," 9 Jan. 2020 Here, photoreceptor cells (including rods and cones) transform light into electrical pulses. Meryl Davids Landau, Good Housekeeping, "How to Maintain Good Eye Health, According to Doctors," 13 Mar. 2020 The nanoparticles bound to the photoreceptors of the mice's eyes and provided night vision for up to 10 weeks without any ill effects. Kyle Mizokami, Popular Mechanics, "Troops Could Have Night Vision Injected Into Their Eyes," 23 Sep. 2019 The high number of photoreceptors means the lenses require less power and less light to transmit images. Courtney Linder, Popular Mechanics, "These Smart Contact Lenses Deliver AR Tech Straight to Your Eyeballs," 17 Jan. 2020 Studies have shown that light-sensing photoreceptors in the eye help to set the body’s circadian clocks, which play a role in regulating sleep, appetite, and much else. Time, "How Wearing Sunglasses Actually Impacts Your Eyes, According to Science," 26 Aug. 2019 The researchers counted roughly 7,000 photoreceptor cells per eye in early juvenile, late juvenile and adult spiders. Leila Sloman, Scientific American, "Baby Jumping Spiders See Surprisingly Well," 28 Oct. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'photoreceptor.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of photoreceptor

1906, in the meaning defined above

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Time Traveler for photoreceptor

Time Traveler

The first known use of photoreceptor was in 1906

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Statistics for photoreceptor

Last Updated

22 May 2020

Cite this Entry

“Photoreceptor.” Dictionary, Merriam-Webster, Accessed 13 Jul. 2020.

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pho·​to·​re·​cep·​tor | \ -ˈsep-tər How to pronounce photoreceptor (audio) \

Medical Definition of photoreceptor

: a receptor for light stimuli

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