a white, crystalline, slightly water-soluble powder, C 4 H 4 N 2 O 3 , used chiefly in the synthesis of barbiturates.
a white crystalline solid used in the preparation of barbiturate drugs. Formula: C4H4N2O3 Systematic name 2,4,6-trioxypyrimidine Also called malonylurea
barbituric acid bar·bi·tu·ric acid (bär’bĭ-tur’ĭk, -tyur’-)
An organic acid used in the manufacture of barbiturates.
- Barbizon school
a group of French painters of the mid-19th century whose landscapes and genre paintings depicted peasant life and the quality of natural light on objects. Historical Examples Nice boys they were of the Barbizon School, all in the best form. Punch, or the London Charivari, Volume 98, March 1, 1890 Various noun a group of […]
a thin clay paste for making ceramic decorations in low relief. Historical Examples Underglaze or barbotine colours should be used, and they should be put on in thin washes. The Girl’s Own Paper, Vol. VIII: No. 356, October 23, 1886. Various
noun John. c. 1320–95, Scottish poet: author of The Bruce (1376), a patriotic epic poem Contemporary Examples And could there be anybody more different from Obama than barbour? Barbour vs. Obama, 2012 Mark McKinnon June 27, 2009 barbour provided the ammunition in what was otherwise a friendly profile in a conservative magazine. Haley Barbour’s Mississippi […]
- Barbour jacket
noun trademark a hard-wearing waterproof waxed jacket