Word Study
barbituric acid
CIDE DICTIONARY
barbituric acid,
A white, crystalline substance, CH2(CO.NH)2.CO , derived from alloxantin, also from malonic acid and urea, and regarded as a substituted urea. [1913 Webster]
OXFORD DICTIONARY
barbituric acid, n. Chem. an organic acid from which various sedatives and sleep-inducing drugs are derived.
Etymology
F barbiturique f. G Barbiturs{auml}ure (S{auml}ure acid) f. the name Barbara
For further exploring for "barbituric acid" in Webster Dictionary Online