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 \ˌpa-thə-ˈlä-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
Recent Examples of pathological from the Web
This creates a pathological metabolic memory— an abnormal cellular response — that leads to chronic disease.
This is as much a matter of magical thinking (of a pathological variety) as that of the settlers, who imagine that the Palestinian people will one day simply evaporate.
The Net at its most pathological – deranged and anonymous.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'pathological'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
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
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