laboratory in WordNet English dictionary

1. a workplace for the conduct of scientific research
   lab  laboratory  research lab  research laboratory  science lab  science laboratory 
   
2. a region resembling a laboratory inasmuch as it offers opportunities for observation and practice and experimentation
   "the new nation is a testing ground for socioeconomic theories"; "Pakistan is a laboratory for studying the use of American troops to combat terrorism"
   testing ground  laboratory