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Jacobson's organ

American  
[jey-kuhb-suhnz] / ˈdʒeɪ kəb sənz /

noun

Anatomy, Zoology.
  1. either of a pair of blind, tubular, olfactory sacs in the roof of the mouth, vestigial in humans but well-developed in many animals, especially reptiles.


Etymology

Origin of Jacobson's organ

1870–75; named after L. L. Jacobson (died 1843), Danish anatomist

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Our feline friends have another tool at their disposal: the Jacobson’s organ.

From National Geographic Jan. 2, 2024

The inhaled air is trapped on the olfactory epithelium and/or the Jacobson’s organ, giving kitties an extra chance to detect scent molecules.

From National Geographic Jan. 2, 2024

This shunts air molecules to the Jacobson’s organ.

From National Geographic Jan. 2, 2024

Interestingly, fish lack this accessory organ, suggesting that perhaps, life on land may have been the impetus for the evolution of the Jacobson’s organ.

From Slate Aug. 25, 2014

Jacobson’s organ has been lost by the birds, apparently without a trace in the embryonic fowl, but T.J.

From Encyclopaedia Britannica, 11th Edition, Volume 3, Slice 7 "Bible" to "Bisectrix" by Various

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