Jacobson's organ
[ jey-kuh b-suh nz ]
/ ˈdʒeɪ kəb sənz /
noun Anatomy, Zoology.
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.
Origin of Jacobson's organ
1870–75; named after L. L.
Jacobson (died 1843), Danish anatomist