ALL meanings of jacobson's organ
Ja·cob·son's or·gan
J j - noun jacobson's organ 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. 1
- noun jacobson's organ either of a pair of olfactory sense organs in the roof of the mouth of many vertebrates, esp. snakes and lizards 0