from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A room or building equipped for scientific experimentation or research.
  • noun An academic period devoted to work or study in such a place.
  • noun A place where drugs and chemicals are manufactured.
  • noun A place for practice, observation, or testing.

from The Century Dictionary.

  • noun The space between the fire and the flue-bridges of a reverberatory furnace in which the work is performed.
  • noun A room, building, or workshop especially fitted with suitable apparatus for conducting investigations in any department of science or art, or for elaborating or manufacturing chemical, medicinal, or any similar products: as, a chemical or pharmaceutical laboratory; hence, also, figuratively, any place where or in which similar processes are carried on by natural forces.
  • noun Milit., an establishment for the manufacture of rockets, port-fires, fuses, percussion-caps, quick-and slow-matches, friction-primers, electric primers, etc., designed for military operations.

from the GNU version of the Collaborative International Dictionary of English.

  • noun The workroom of a chemist; also, a place devoted to experiments in any branch of natural science. Hence, by extension, a place where something is prepared, or some operation is performed.
  • noun Any place, activity or situation suggestive of a scientific laboratory{1}, especially in being conducive to learning new facts by experimentation or by systematic observation.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun a room, building or institution equipped for scientific research, experimentation or analysis
  • noun a place where chemicals, drugs or microbes are prepared or manufactured

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun a region resembling a laboratory inasmuch as it offers opportunities for observation and practice and experimentation
  • noun a workplace for the conduct of scientific research


from The American Heritage® Dictionary of the English Language, 4th Edition

[Medieval Latin labōrātōrium, from Latin labōrāre, to labor, from labor, labor.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

From Medieval Latin laboratorium


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  • DURBIN: I can just tell you that what they call a laboratory wouldn't pass any high school laboratory test.

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