[lav.a.to.ry] n, pl -ries [ME lavatorie, fr. ML lavatorium, fr. L lavare to wash--more at lye] (14c) 1: a vessel (as a basin) for washing; esp: a fixed bowl or basin with running water and drainpipe for washing
2: a room with conveniences for washing and usu. with one or more toilets
3: toilet 3b -- lavatory adj