Definition of laboratory
1a : a place equipped for experimental study in a science or for testing and analysis a research laboratory broadly : a place providing opportunity for experimentation, observation, or practice in a field of study
b : a place like a laboratory for testing, experimentation, or practice That area is a laboratory for cultivating the germ of terrorism.
2 : an academic period set aside for laboratory work a course of study requiring two lectures and one laboratory per week
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