Source : Webster's Revised Unabridged Dictionary (1913)

Cohabitation \Co*hab"i*ta"tion\, n. [L. cohabitatio.]
   1. The act or state of dwelling together, or in the same
      place with another. --Feltham.

   2. (Law) The living together of a man and woman in supposed
      sexual relationship.

            That the duty of cohabitation is released by the
            cruelty of one of the parties is admitted. --Lord
                                                  Stowell.

Source : WordNet®

cohabitation
     n : living together (as spouses) [syn: {living together}]