Definition of laboratory in English:

laboratory

Pronunciation /ləˈbɒrəˌt(ə)ri/ /ˈlab(ə)rəˌt(ə)ri/

nounlaboratories

  • 1A room or building equipped for scientific experiments, research, or teaching, or for the manufacture of drugs or chemicals.

    as modifier ‘laboratory tests’
    • ‘The summer programs at the various laboratories will run from late May to mid-August, fall programs run from August through December and spring programs from January through May.’
    • ‘Health benefits are often documented in laboratory studies of animals other than humans.’
    • ‘Much has been learned about sleep from laboratory studies of non-human animals.’
    • ‘Now I wouldn't want to be quoted as saying that animals that live in laboratory cages are having a wonderful time.’
    • ‘The US group was known chiefly as a breeder of animals such as rats for laboratory experiments until it bought Inveresk last year.’
    • ‘The concept of hormones triggered a new experimental approach in laboratory science.’
    • ‘Initial laboratory studies may include a complete blood cell count and urinalysis.’
    • ‘Thus, the list of species studied in his laboratory ranges from planaria to mammals.’
    • ‘The life cycle of the tapeworm can be readily completed under laboratory conditions.’
    • ‘West Nile virus has been reported in laboratory workers exposed to infected animals.’
    • ‘Once the virus samples arrived from Hong Kong the experiment and laboratory analysis took only two weeks.’
    • ‘Only a few examples have been described, all based on laboratory experiments in which a large part of the shoot was removed.’
    • ‘This is typically an instance where people taking part in laboratory experiments appear to act irrationally.’
    • ‘Competition is certainly one environmental circumstance rarely provided in laboratory experiments.’
    • ‘We believe that the results of analysis of body fluids and laboratory experiments are obvious.’
    • ‘Save for contrived laboratory studies with bacteria and fruit flies, it cannot be witnessed.’
    • ‘The spectral variability of natural materials has been known for a long time from laboratory studies.’
    • ‘So far the discussion concerns laboratory studies and simulations and can be considered largely theoretical.’
    • ‘In general, laboratory studies seem to be able to predict extremely well the behaviour of lichens in their natural habitat.’
    • ‘The predictions of these models are in agreement with results from laboratory studies.’
    1. 1.1as modifier (of an animal) bred for or used in experiments in laboratories.
      ‘studies on laboratory rats’
      • ‘A robust young laboratory mouse is doing well to hang on for thirty or forty seconds.’
      • ‘He is the prime mover in an international contest to extend the lives of laboratory mice.’
      • ‘It has also been linked to certain types of cancerous tumors in laboratory rats.’
      • ‘If laboratory species will voluntarily take a drug, it is assumed that humans will too.’
      • ‘It was outlawed after tests revealed it has caused leukaemia in laboratory mice.’
      • ‘There is no known lethal dose in laboratory animals so why not give it a try?’
      • ‘Compounds that are noxious to humans and laboratory rats are assumed to be toxic to birds, too.’
      • ‘If they did it to a laboratory rat, outraged activists would storm the building.’
      • ‘The powder was applied to laboratory rats on a shaved section of their backs.’
      • ‘The general guideline for the care and use of laboratory animals was followed.’
      • ‘The tails of infant laboratory rats were cut off, generation after generation.’
      • ‘Researchers at the college tested ginseng on laboratory rats by forcing them to swim after a heavy dose.’
      • ‘However, if mobiles are causing tumours it ought to be possible to demonstrate that in laboratory animals.’
      • ‘In one study, researchers exposed laboratory rats to a toxin that is known to cause Parkinson's disease.’
      • ‘For this reason scientists have been turning to a much less expensive alternative, the laboratory mouse.’
      • ‘Styrene, used in the manufacture of plastics, is highly toxic and causes cancer in laboratory animals.’
      • ‘This was followed by tests of the plants' active ingredients on tissue cultures, and then on laboratory rats.’
      • ‘For their study, researchers injected laboratory rats with a known substance that causes colon cancer.’
      • ‘True, some laboratory rats developed tumours after being fed relatively large amounts daily for two years.’
      • ‘During my studies I involved myself in the use of laboratory animals.’

Origin

Early 17th century from medieval Latin laboratorium, from Latin laborare ‘to labour’.

Pronunciation

laboratory

/ləˈbɒrəˌt(ə)ri/ /ˈlab(ə)rəˌt(ə)ri/