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.
Swarming often happens when a honey bee colony outgrows its home, becomes too congested or too populated for pheromones to properly spread around the colony and tell worker bees what to do, according to Hesbach. Stephen Underwood, Hartford Courant, 7 Apr. 2025 Those that consumed methanol showed a marked increase in the levels of pheromones known to be involved with the elaborate fruit fly courtship rituals. ArsTechnica, 2 Apr. 2025 Researchers painted the walls with artificial pheromones to lure them through. Scott Travers, Forbes.com, 26 Mar. 2025 In this courtship melee, pheromones do most of the talking. Scott Travers, Forbes.com, 26 Mar. 2025 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 14 Apr. 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!