Jacobson's organ

noun

Ja·​cob·​son's organ ˈjā-kəb-sənz- How to pronounce Jacobson's organ (audio)
: vomeronasal organ

Word History

Etymology

Ludvig L. Jacobson †1843 Danish anatomist

First Known Use

1885, in the meaning defined above

Time Traveler
The first known use of Jacobson's organ was in 1885

Rhymes for Jacobson's organ

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Browse Nearby Words

jacobsite
Jacobson's organ
Jacobus
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Cite this Entry

“Jacobson's organ.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Jacobson%27s%20organ. Accessed 7 Jul. 2025.

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Medical Definition

Jacobson's organ

noun
: vomeronasal organ

More from Merriam-Webster on Jacobson's organ

Britannica.com: Encyclopedia article about Jacobson's organ

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