n. [ Cf. F. antichambre. ] 1. A chamber or apartment before the chief apartment and leading into it, in which persons wait for audience; an outer chamber. See Lobby. [ 1913 Webster ]
2. A space viewed as the outer chamber or the entrance to an interior part. [ 1913 Webster ]
The mouth, the antechamber to the digestive canal. Todd & Bowman. [ 1913 Webster ]