Lab·o·ra·to·ry n.; pl. Laboratories [Formerly written also elaboratory.]
1. The workroom of a chemist; also, a place devoted to experiments in any branch of natural science; as, a chemical, physical, or biological laboratory. Hence, by extension, a place where something is prepared, or some operation is performed; as, the liver is the laboratory of the bile.
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E·lab·o·ra·to·ry, n. A laboratory. [Obs.]
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E·lab·o·ra·to·ry a. Tending to elaborate.