operational research

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