noun, plural lab·o·ra·to·ries.

  1. a building, part of a building, or other place equipped to conduct scientific experiments, tests, investigations, etc., or to manufacture chemicals, medicines, or the like.
  2. any place, situation, set of conditions, or the like, conducive to experimentation, investigation, observation, etc.; anything suggestive of a scientific laboratory.


  1. serving a function in a laboratory.
  2. relating to techniques of work in a laboratory: laboratory methods; laboratory research.

noun plural -ries

    1. a building or room equipped for conducting scientific research or for teaching practical science
    2. (as modifier)laboratory equipment
  1. a place where chemicals or medicines are manufactured

n.c.1600, “building set apart for scientific experiments,” from Medieval Latin laboratorium “a place for labor or work,” from Latin laboratus, past participle of laborare “to work” (see labor (n.)). Figurative use by 1660s. n.

  1. A room or building equipped for scientific research.
  2. A place where drugs and chemicals are manufactured.
  3. A place for practice, observation, or testing.
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