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Definition of controlled substance noun from the Oxford Advanced Learner's Dictionary

controlled substance

noun

/kənˌtrəʊld ˈsʌbstəns/

/kənˌtrəʊld ˈsʌbstəns/

(specialist)

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an illegal drug
- to be arrested for possession of a controlled substance
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See controlled substance in the Oxford Advanced American Dictionary

Check pronunciation: controlled substance

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