laboratory

[lab-ruh-tawr-ee, -tohr-ee, lab-er-uh-; British luh-bor-uh-tuh-ree, -uh-tree]
noun, plural laboratories.
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.
adjective
3.
serving a function in a laboratory.
4.
relating to techniques of work in a laboratory: laboratory methods; laboratory research.

Origin:
1595–1605; < Medieval Latin labōrātōrium workshop, equivalent to Latin labōrā(re) to labor + -tōrium -tory2

laboratorial, adjective
laboratorially, adverb
laboratorian, noun
interlaboratory, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
laboratory (ləˈbɒrətərɪ, -trɪ, US ˈlæbrəˌtɔːrɪ)
 
n , pl -ries
1.  a.  a building or room equipped for conducting scientific research or for teaching practical science
 b.  (as modifier): laboratory equipment
2.  a place where chemicals or medicines are manufactured
 
[C17: from Medieval Latin labōrātōrium workshop, from Latin labōrāre to labour]

Collins English Dictionary - Complete & Unabridged 10th Edition
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Etymonline
Word Origin & History

laboratory
c.1600, "building set apart for scientific experiments," from M.L. laboratorium "a place for labor or work," from L. laboratus, pp. of laborare "to work" (see labor).
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

laboratory lab·o·ra·to·ry (lāb'rə-tôr'ē)
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.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Example sentences
The researchers argue that a federal moratorium on the breeding of chimps in
  laboratories should be lifted.
They break rocks in laboratories, studying how stone behaves under stress.
Many indeed have been able to carry on their war research in their familiar
  peacetime laboratories.
But the message emerging from laboratories around the world should be hailed,
  not muzzled.
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