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Meaning of barbiturism

bar•bi•tur•ism

Pronunciation: (bär-bich'u-riz"um), [key]
— n. Pathol.
  1. chronic poisoning caused by the excessive use of phenobarbital, secobarbital, or other derivative of barbituric acid.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.