In medical jurisprudence. One which prevents, obstructs, orinterferes with the due performance of its special functions by any organ of the body,without anatomical defect or abnormality In the organ itself. See Higbee v. GuardianMut L. Ins. Co., 66 Barb. (N. Y.) 472. Distinguished from “organic” disease, which is dueto some injury to, or lesion or malformation in, the organ in question.