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[puh-thol-uh-jee] /pəˈθɒl ə dʒi/
noun, plural pathologies.
the science or the study of the origin, nature, and course of diseases.
the conditions and processes of a disease.
any deviation from a healthy, normal, or efficient condition.
Origin of pathology
1590-1600; earlier pathologia < Latin < Greek pathología. See patho-, -logy
Related forms
pathologist, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for pathologies


noun (pl) -gies
the branch of medicine concerned with the cause, origin, and nature of disease, including the changes occurring as a result of disease
the manifestations of disease, esp changes occurring in tissues or organs
any variant or deviant condition from normal
Derived Forms
pathologist, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for pathologies



"science of diseases," 1610s, from French pathologie (16c.), from medical Latin pathologia "study of disease," from Greek pathos "suffering" (see pathos) + -logia "study" (see -logy). In reference to the study of abnormal mental conditions from 1842. Ancient Greek pathologia was "study of the passions;" the Greek word for "science of diseases" was pathologike ("pathologics").

Online Etymology Dictionary, © 2010 Douglas Harper
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pathologies in Medicine

pathology pa·thol·o·gy (pā-thŏl'ə-jē)

  1. The medical science concerned with all aspects of disease with an emphasis on the essential nature, causes, and development of abnormal conditions, as well as with the structural and functional changes that result from disease processes.

  2. The anatomical or functional manifestations of a disease.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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pathologies in Science
  1. The scientific study of disease and its causes, processes, and effects.

  2. The physical and mental abnormalities that result from disease or trauma.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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pathologies in Culture
pathology [(puh-thol-uh-jee)]

A branch of medicine that explores the nature and cause of disease. Pathology also involves the study of bodily changes that occur as the result of disease.

The New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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