Definition of laboratory in English:

laboratory

noun

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

    ‘pepsin can be extracted in the laboratory’
    ‘a film processing laboratory’
    as modifier ‘a laboratory technician’
    • ‘In general, laboratory studies seem to be able to predict extremely well the behaviour of lichens in their natural habitat.’
    • ‘This is typically an instance where people taking part in laboratory experiments appear to act irrationally.’
    • ‘The concept of hormones triggered a new experimental approach in laboratory science.’
    • ‘Thus, the list of species studied in his laboratory ranges from planaria to mammals.’
    • ‘Save for contrived laboratory studies with bacteria and fruit flies, it cannot be witnessed.’
    • ‘Health benefits are often documented in laboratory studies of animals other than humans.’
    • ‘The predictions of these models are in agreement with results from laboratory studies.’
    • ‘Competition is certainly one environmental circumstance rarely provided in laboratory experiments.’
    • ‘Now I wouldn't want to be quoted as saying that animals that live in laboratory cages are having a wonderful time.’
    • ‘Much has been learned about sleep from laboratory studies of non-human animals.’
    • ‘We believe that the results of analysis of body fluids and laboratory experiments are obvious.’
    • ‘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.’
    • ‘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.’
    • ‘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.’
    • ‘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.’
    • ‘Initial laboratory studies may include a complete blood cell count and urinalysis.’
    • ‘The US group was known chiefly as a breeder of animals such as rats for laboratory experiments until it bought Inveresk last year.’
    1. 1.1as modifier (of an animal) bred for or used in experiments in laboratories.
      ‘studies on laboratory rats’
      • ‘True, some laboratory rats developed tumours after being fed relatively large amounts daily for two years.’
      • ‘It has also been linked to certain types of cancerous tumors in laboratory rats.’
      • ‘It was outlawed after tests revealed it has caused leukaemia in laboratory mice.’
      • ‘The tails of infant laboratory rats were cut off, generation after generation.’
      • ‘In one study, researchers exposed laboratory rats to a toxin that is known to cause Parkinson's disease.’
      • ‘Compounds that are noxious to humans and laboratory rats are assumed to be toxic to birds, too.’
      • ‘If laboratory species will voluntarily take a drug, it is assumed that humans will too.’
      • ‘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.’
      • ‘However, if mobiles are causing tumours it ought to be possible to demonstrate that in laboratory animals.’
      • ‘For this reason scientists have been turning to a much less expensive alternative, the laboratory mouse.’
      • ‘This was followed by tests of the plants' active ingredients on tissue cultures, and then on laboratory rats.’
      • ‘Researchers at the college tested ginseng on laboratory rats by forcing them to swim after a heavy dose.’
      • ‘During my studies I involved myself in the use of laboratory animals.’
      • ‘For their study, researchers injected laboratory rats with a known substance that causes colon cancer.’
      • ‘If they did it to a laboratory rat, outraged activists would storm the building.’
      • ‘There is no known lethal dose in laboratory animals so why not give it a try?’
      • ‘The general guideline for the care and use of laboratory animals was followed.’
      • ‘Styrene, used in the manufacture of plastics, is highly toxic and causes cancer in laboratory animals.’
      • ‘The powder was applied to laboratory rats on a shaved section of their backs.’

Origin

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

Pronunciation

laboratory

/ˈlæbrəˌtɔri//ˈlabrəˌtôrē/