receptor

noun

re·​cep·​tor ri-ˈsep-tər How to pronounce receptor (audio)
: receiver: such as
a
: a cell or group of cells that receives stimuli : sense organ
b
: a chemical group or molecule (such as a protein) on the cell surface or in the cell interior that has an affinity for a specific chemical group, molecule, or virus

Examples of receptor 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.
Other target genes included MC1R (melanocortin 1 receptor), which regulates melanin production, in order to produce mice with golden hair rather than the usual dark fur and a variant associated with changes in body weight. Katie Hunt, CNN, 4 Mar. 2025 Half received semaglutide, a type of GLP-1 receptor agonist, while the other half received no treatment. Dr. Christopher Wachuku, ABC News, 12 Feb. 2025 The drugs, known as GLP-1 receptor agonists, work by mimicking hormones in the gut and the brain to regulate appetite and feelings of fullness. Carla K. Johnson, Los Angeles Times, 12 Feb. 2025 Anything those receptors bind to, such as bacteria and organic debris, are considered edible, while things that cannot bind to those receptors, such as rocks, are classified as inedible. Kate Adamala, The Conversation, 11 Feb. 2025 See All Example Sentences for receptor

Word History

First Known Use

1898, in the meaning defined above

Time Traveler
The first known use of receptor was in 1898

Browse Nearby Words

Cite this Entry

“Receptor.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/receptor. Accessed 11 Mar. 2025.

Kids Definition

receptor

noun
re·​cep·​tor ri-ˈsep-tər How to pronounce receptor (audio)
1
: a cell or group of cells that receives stimuli : sense organ
2
: a molecule (as protein) on the surface or in the inside of a cell that recognizes and joins to specific molecules causing a certain activity within the cell to begin

Medical Definition

receptor

noun
re·​cep·​tor ri-ˈsep-tər How to pronounce receptor (audio)
1
: a cell or group of cells that receives stimuli : sense organ
2
: a chemical group or molecule (as a protein) on the cell surface or in the cell interior that has an affinity for a specific chemical group, molecule, or virus
3
: a cellular entity (as a beta-receptor or alpha-receptor) that is a postulated intermediary between a chemical agent (as a neurohormone) acting on nervous tissue and the physiological or pharmacological response

More from Merriam-Webster on receptor

Last Updated: - Updated example sentences
Love words? Need even more definitions?

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