path·o·log·i·cal / ˌpa[unvoicedth]əˈläjikəl/ (also path·o·log·ic) • adj. of or relating to pathology: the interpretation of pathological studies. ∎  involving, caused by, or of the nature of a physical or mental disease: pathological changes associated with senile dementia. ∎ inf. compulsive; obsessive: a pathological gambler.DERIVATIVES: path·o·log·i·cal·ly adv.

pathological (pa-thŏ-loj-ikăl) adj. relating to or arising from disease. p. fracture see fracture.