Jacobson's organ

Jacobson's organ

[jey-kuhb-suhnz]
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:
1870–75; named after L. L. Jacobson (died 1843), Danish anatomist

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