materies morbi

ma·te·ri·es mor·bi

(mă-tē'rē-ēz mōr'bī), The substance acting as the immediate cause of a disease. [L. the matter of disease]

materies morbi

An obsolete term for those factors and substances that cause disease; aetiologic factors; aetiology.

ma·te·ri·es mor·bi

(mă-tē'rē-ēz mōr'bī) Substance acting as immediate cause of a disease. [L. the matter of disease]