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[pen-tuh-bahr-bi-tawl, -tal] /ˌpɛn təˈbɑr bɪˌtɔl, -ˌtæl/

noun, Pharmacology.
a barbiturate, C 1 1 H 1 7 N 2 O 3 , used as a hypnotic and as a sedative.


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