lab·o·ra·to·ry 
(lăbrə-tôr′ē)
(lăbrə-tôr′ē)n. pl. lab·o·ra·to·ries
1.
a. A room or building equipped for scientific experimentation or research.
b. An academic period devoted to work or study in such a place.
2. A place where drugs and chemicals are manufactured.
3. A place for practice, observation, or testing.
[Medieval Latin labōrātōrium, from Latin labōrāre, to labor, from labor, labor.]