Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

pathology

play
noun pa·thol·o·gy \-jē\

Simple Definition of pathology

  • : the study of diseases and of the changes that they cause

  • : changes in a person, an animal, or a plant that are caused by disease

Source: Merriam-Webster's Learner's Dictionary

Full Definition of pathology

plural

pathologies

  1. 1 :  the study of the essential nature of diseases and especially of the structural and functional changes produced by them

  2. 2 :  something abnormal: a :  the structural and functional deviations from the normal that constitute disease or characterize a particular disease b :  deviation from propriety or from an assumed normal state of something nonliving or nonmaterial c :  deviation giving rise to social ills <connections between these pathologies … and crime — Wendy Kaminer>

Examples of pathology in a sentence

  1. the pathology of lung diseases



Origin and Etymology of pathology

New Latin pathologia & Middle French pathologie, from Greek pathologia study of the emotions, from path- + -logia -logy


First Known Use: 1611


Medical Dictionary

pathology

play
noun pa·thol·o·gy \-jē\

Medical Definition of pathology

plural

pathologies

  1. 1:  the study of the essential nature of diseases and especially of the structural and functional changes produced by them

  2. 2:  the anatomic and physiological deviations from the normal that constitute disease or characterize a particular disease

  3. 3:  a treatise on or compilation of abnormalities <a new pathology of the eye>





Seen and Heard

What made you want to look up pathology? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

of striking ability or excellence

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

two-chairs-on-a-pier-by-the-ocean-in-summer

Which of the following words means “of or relating to summer”?

brumal hiemal vernal estival
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ