pheromone

noun

pher·​o·​mone ˈfer-ə-ˌmōn How to pronounce pheromone (audio)
: a chemical substance that is usually produced by an animal and serves especially as a stimulus to other individuals of the same species for one or more behavioral responses
pheromonal adjective

Examples of pheromone 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.
Mark Hoddle, a biological control specialist and principal investigator at the UC Riverside Department of Entomology, previously told the La Jolla Light that the palm weevil will colonize a tree — particularly Canary Island date palms — and attract other weevils by releasing a pheromone. Noah Lyons, San Diego Union-Tribune, 7 Feb. 2025 This is because female dogs in heat release a pheromone called methyl p-hydroxybenzoate. Tommy Tuberville, Newsweek, 8 Jan. 2025 Owners can comfort their dogs and reduce anxiety by creating a calm environment or using aids like pheromone diffusers. David Faris, Newsweek, 18 Jan. 2025 To ease the dogs’ anxieties, there were pheromone mists and swaddling ThunderShirts and even a soothing bone broth. Steven Zeitchik, The Hollywood Reporter, 15 Dec. 2024 See All Example Sentences for pheromone

Word History

Etymology

Greek phérein "to carry" + -o- + -mone (in hormone) — more at bear entry 2

Note: Name introduced by the German biochemist Peter Karlson (1918-2001) and the Swiss entomologist Martin Lüscher (1917-79) in "'Pheromones': a New Term for a Class of Biologically Active Substances," Nature, vol. 183, no. 4653 (January 3, 1959), pp. 55-56: "We propose, therefore, the designation 'pheromone' for this group of active substances. The name is derived from the Greek pherein, to transfer; hormōn, to excite. Pheromones are defined as substances which are secreted to the outside by an individual and received by a second individual of the same species, in which they release a specific reaction, for example, a definite behaviour or a developmental process."

First Known Use

1959, in the meaning defined above

Time Traveler
The first known use of pheromone was in 1959

Browse Nearby Words

Cite this Entry

“Pheromone.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pheromone. Accessed 9 Mar. 2025.

Kids Definition

pheromone

noun
pher·​o·​mone ˈfer-ə-ˌmōn How to pronounce pheromone (audio)
: a chemical substance (as a scent) that is produced by an animal and serves as a signal to other individuals of the same species to engage in some kind of behavior (as mating)

Medical Definition

pheromone

noun
pher·​o·​mone ˈfer-ə-ˌmōn How to pronounce pheromone (audio)
: a chemical substance that is produced by an animal and serves especially as a stimulus to other individuals of the same species for one or more behavioral responses

called also ectohormone

More from Merriam-Webster on pheromone

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!