Pronunciation: mas′ō-kizm, maz′ō-
1. Passive algolagnia; a form of perversion, often sexual in nature, in which a person experiences pleasure in being abused, humiliated, or maltreated.
2. A general orientation in life that personal suffering relieves guilt and leads to a reward.
The definition information for masochism is provided by Stedman's. You can search our medical dictionary here.