vivarium

from WordNet (r) 3.0 (2006)

vivarium
    n 1: an indoor enclosure for keeping and raising living animals
         and plants and observing them under natural conditions

from The Collaborative International Dictionary of English v.0.48

Vivarium \Vi*va"ri*um\, n.; pl. E. {Vivariums}, L. {Vivaria}.
   [L., fr. vivarius belonging to living creatures, fr. vivus
   alive, living. See {Vivid}.]
   A place artificially arranged for keeping or raising living
   animals, as a park, a pond, an aquarium, a warren, etc.
   [1913 Webster]