a set of specialized receptor cells that in nonhuman mammals is sensitive to pheromones and thus plays an important role in the sexual behavior and reproductive physiology of these animals. In humans, this system responds physiologically to chemical stimulation and, in turn, excites brain centers, but its role in human olfaction is not known. Also called Jacobson’s organ; vomeronasal organ (VNO).
n. an inflammation of the pancreas, marked by severe abdominal pain and caused by biliary tract disorders (e.g., gallstones), alcoholism, viral infection, or reactions to certain drugs (e.g., some antipsychotic agents).