operational research
noun/ˌɒpəreɪʃənl rɪˈsɜːtʃ/, /ˌɒpəreɪʃənl ˈriːsɜːtʃ/
/ˌɑːpəreɪʃənl ˈriːsɜːrtʃ/, /ˌɑːpəreɪʃənl rɪˈsɜːrtʃ/
(also operations research)
[uncountable] (specialist)- the study of how businesses are organized, in order to make them more efficient
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operational research