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amobarbital

[am-oh-bahr-bi-tal, -tawl]
noun Pharmacology.
  1. a colorless, crystalline barbiturate, C11H18N2O3, used chiefly as a sedative.
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Origin of amobarbital

1945–50; am(yl) + -o- + barbital
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018