Definition of: concubine

(kong′kyə·bīn, kon′-) noun
1. A woman who cohabits with a man without a marriage bond.
2. In certain polygamous societies, a secondary wife.
3. Obs. A paramour. [<F <L concubina, fem. of concubinus <concumbere <com- with + cumbere lie]
—con·cu·bi·nal (kon·ky′bə·nəl), con·cu′bi·nar′y (-ner′ē) adjective