Definition of pathological
1 : of or relating to pathology <pathological research> <A pathological examination led to the diagnosis.>
2 : altered or caused by disease <pathological changes in the body>; also : indicative of disease <pathological symptoms>
3 : being such to a degree that is extreme, excessive, or markedly abnormal <a pathological liar> <pathological fear>
pathologicallyplay \-ji-k(ə-)lē\ adverb
Examples of pathological in a sentence
He is a pathological liar.
She has a pathological fear of heights.
pathological changes in the body
First Known Use of pathological
PATHOLOGICAL Defined for English Language Learners
Definition of pathological for English Language Learners
: extreme in a way that is not normal or that shows an illness or mental problem
medical : relating to or caused by disease
: of or relating to the study of diseases : relating to pathology
Medical Definition of pathological
1: of or relating to pathology <a pathological laboratory>
2: altered or caused by disease <pathological tissue>; also : indicative of disease <pathological lesions>
Seen and Heard
What made you want to look up pathological? Please tell us where you read or heard it (including the quote, if possible).