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
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