Webster's English Dictionary

Enter the word to look up:

pathology

pa.thol.o.gy \-je-\ n [NL pathologia & MF pathologie, fr. Gk pathologia 
   study of th]e emotions, fr. path- + -logia -logy 1: the study of the 
   essential nature of diseases and esp. of the structural  and functional 
   changes produced by them 2: something abnormal :  2a: the anatomic and 
   physiologic deviations from the normal that constitute  disease or 
   characterize a particular disease 2b: deviation from propriety or from an 
   assumed normal state of something n onliving or nonmaterial