humoral adjective2 •Relating to the body fluids or humours.The usual kind of excitation met with in the pancreas is purely humoral and there is no reason to assume that any form of nervous activity is involved in it. — 2015 •(historical) Pertaining to humorism. (The theory of the influence of the humors in the production of disease.)The planets are used as symbols in Culpeper's humoral philosophy, and the way he uses them had developed within hermetic philosophy. — 2021