1. the scientific study of crime and criminal behavior and law enforcement
The Collaborative International Dictionary of English v.0.48:
Criminology \Crim`i*nol"o*gy\ (-n?l"?-j?), n. [L. crimen,
crimenis, crime + -logy.]
1. A treatise on crime or the criminal population.
2. The branch of sociology which studies crime and criminals.
[PJC] -- Crim`i*nol"o*gist (-j?st), n.
WordNet (r) 3.0 (2006):
n 1: the scientific study of crime and criminal behavior and law