ambulatories

from The Collaborative International Dictionary of English v.0.48

Ambulatory \Am"bu*la*to*ry\, n.; pl. {Ambulatories}. [Cf. LL.
   ambulatorium.] (Arch.)
   A place to walk in, whether in the open air, as the gallery
   of a cloister, or within a building.
   [1913 Webster]