The Collaborative International Dictionary of English v.0.48:

Odalisque \O`da`lisque"\, n. [F., fr. Turk. odaliq chambermaid,
   fr. oda chamber, room.]
   A female slave or concubine in the harem of the Turkish
   sultan. [Written also odahlic, odalisk, and odalik.]
   [1913 Webster]

         Not of those that men desire, sleek
         Odalisques, or oracles of mode.          --Tennyson.
   [1913 Webster] Odalman

WordNet (r) 3.0 (2006):

odalisque
    n 1: a woman slave in a harem

Moby Thesaurus II by Grady Ward, 1.0:

45 Moby Thesaurus words for "odalisque":
   Aspasia, Delilah, Jezebel, Messalina, Phryne, Thais, adventuress,
   bondmaid, bondman, bondslave, bondsman, bondswoman, captive,
   chattel, chattel slave, churl, concubine, courtesan, debt slave,
   demimondaine, demimonde, demirep, femme fatale, galley slave,
   harem girl, helot, hetaera, homager, houri, liege, liege man,
   liege subject, peon, seductress, serf, servant, slave, subject,
   temptress, theow, thrall, vamp, vampire, vassal, villein