bar·bi·tu·ric acid /ˌbɑrbəˈt(j)ʊrɪk-/
bar·bi·tu·ric acid /ˌbɑrbəˌt(j)ʊrɪk-/ 名詞
巴比妥酸,丙二反,巴比士酸
Bar·bi·tu·ric ac·id Chem. A white, crystalline substance, CH2(CO.NH)2.CO, derived from alloxantin, also from malonic acid and urea, and regarded as a substituted urea.
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barbituric acid
n : a white crystalline acid derived from pyrimidine; used in
preparing barbiturate drugs [syn: malonylurea]