Definition of laboratory in English:

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Pronunciation: /ˈlabrəˌtôrē/

noun (plural laboratories)

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
More example sentences
  • 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.
1.1 [as modifier] (Of an animal) bred for or used in experiments in laboratories: studies on laboratory rats
More example sentences
  • 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.


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

Words that rhyme with laboratory

exploratory, oratory

For editors and proofreaders

Syllabification: lab·o·ra·to·ry

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