1. cabanis, pierre jean george a celebrated Frenchmedical man, born in Cosnac, in the dep. of Charente Inférieure, a pronounced materialist in philosophy, and friend of Mirabeau; attended him in his last illness, and published an account of it; his materialism was of the grossest; treated the soul as a nonentity; and held that the brain secretes thought just as the liver secretes bile (1757-1808).