pathology

noun

pa·​thol·​o·​gy pə-ˈthä-lə-jē 

plural pathologies

1

: the study of the essential nature of diseases and especially of the structural and functional changes produced by them

studied plant pathology

2

: something abnormal:

a

: the structural and functional deviations from the normal that constitute disease or characterize a particular disease

the pathology of pneumonia

b

: deviation from propriety or from an assumed normal state of something nonliving or nonmaterial

the pathology of wine

c

: deviation giving rise to social ills

connections between these pathologies … and crime

—Wendy Kaminer

social pathology

Examples of pathology in a Sentence

the pathology of lung diseases

Recent Examples on the Web

The team examined six potential causes to account for the observed pathologies and concluded that Down Syndrome, caused by having three copies of the 21st chromosome, is the only option that accounts for all of them. —Ryan McRae, Smithsonian Magazine, 31 Dec. 2024

Diagnostics And Personalized Medicine One area where AI has already proven itself remarkably capable is diagnostics, especially in fields like radiology, pathology and dermatology. —Elizabeth Kiehner, Forbes, 20 Dec. 2024

By the 1800s, pathology was considered its own discipline. —Emilie Le Beau Lucchesi, Discover Magazine, 16 Dec. 2024

As in Leigh’s Naked, these pathologies don’t simply belong to a subculture; each exchange highlights the idiosyncrasy of communication that only art can reveal. —Armond White, National Review, 11 Dec. 2024

Word History

Etymology

borrowed from Middle French & New Latin; Middle French pathologie, borrowed from New Latin pathologia "study of the emotions, study of diseases," from patho- patho- + -logia -logy

Note: Probably formed on the basis of New Latin pathologicus (see pathological). In the sense "study of the emotions," perhaps directly from Greek pathología "study of the passions," attested in Greek-Latin glossaries.

First Known Use

1611, in the meaning defined at sense 1

Kids Definition

pathology

noun

pa·​thol·​o·​gy pə-ˈthäl-ə-jē 

plural pathologies

1

: the study of diseases and especially of the changes in the body produced by them

2

: something abnormal

especially : the disorders in structure and function that occur in a particular disease

Medical Definition

pathology

noun

pa·​thol·​o·​gy -jē 

plural pathologies

1

: the study of the essential nature of diseases and especially of the structural and functional changes produced by them

2

: the anatomic and physiological deviations from the normal that constitute disease or characterize a particular disease

3

: a treatise on or compilation of abnormalities

a new pathology of the eye