photoreceptor

noun
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 Interfering in photoreceptor signaling, the circadian clock and chloroplast-derived light signals did cause problems in some genes’ expression, but there was a large proportion of genes still unaffected. Mike Wehner, BGR, 8 June 2021 When light enters the eye, it is captured by photoreceptor cells. BostonGlobe.com, 24 May 2021 Retinitis pigmentosa causes the photoreceptor cells to break down, resulting in vision loss. Amy Dockser Marcus, WSJ, 24 May 2021 The retina’s photoreceptor cells use light-sensitive proteins, called opsins, to convert light entering the eye into electrical signals. Simon Makin, Scientific American, 23 Apr. 2021 When light enters the eye, it is captured by photoreceptor cells, which convert the information into electrical impulses and transmit them to deeper layers of the retina. Mo Costandi, Scientific American, 5 May 2014 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, 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, 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, 9 Jan. 2020

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.

See More

First Known Use of photoreceptor

1906, in the meaning defined above

Keep scrolling for more

Learn More About photoreceptor

Time Traveler for photoreceptor

Time Traveler

The first known use of photoreceptor was in 1906

See more words from the same year

Statistics for photoreceptor

Last Updated

14 Jun 2021

Cite this Entry

“Photoreceptor.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/photoreceptor. Accessed 17 Jun. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

Keep scrolling for more

More Definitions for photoreceptor

photoreceptor

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

Medical Definition of photoreceptor

: a receptor for light stimuli

More from Merriam-Webster on photoreceptor

Britannica.com: Encyclopedia article about photoreceptor

WORD OF THE DAY

Test Your Vocabulary

Name that Thing: Dog Breeds

Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Typeshift

Anagram puzzles meet word search.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!