1. hurting others for sexual pleasure: the gaining of sexual gratification by causing physical or mental pain to other people, or the acts that produce such gratification
2. being cruel for fun: the gaining of pleasure from causing physical or mental pain to people or animals
3. cruelty: great physical or mental cruelty
[Late 19th century. < French sadisme, after the Marquis de Sade]
Hotmail
Dictionary
