Also found in: Dictionary, Thesaurus, Encyclopedia.
Related to idiopathic disease: idiopathic disorder
self-originated; occurring without known cause.
idiopathic disease one that exists without any connection with any known cause.
a disease of unknown cause or mechanism.
id·i·o·path·ic dis·ease(id-ē'ō-path'ik di-zēz')
A disorder of unknown cause or mechanism.