Barbituric acid

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.
[1913 Webster]

{

Bar`bi`zon" school

, or

Bar`bi`son" school

, (?) }. (Painting) A French school of the middle of the 19th century centering in the village of Barbizon near the forest of Fontainebleau. Its members went straight to nature in disregard of academic tradition, treating their subjects faithfully and with poetic feeling for color, light, and atmosphere. It is exemplified, esp. in landscapes, by Corot, Rousseau, Daubigny, Jules Dupr, and Diaz. Associated with them are certain painters of animals, as Troyon and Jaque, and of peasant life, as Millet and Jules Breton.
[Webster 1913 Suppl.]

 

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Wed 12th December 2018