any of a group of barbituric acid derivatives, used in medicine as sedatives and hypnotics.
a derivative of barbituric acid, such as phenobarbital, used in medicine as a sedative, hypnotic, or anticonvulsant
1928 (morphine barbiturate is from 1918), from German, coined 1863 by chemist Adolf von Baeyer (1835-1917) from Barbitursäure “barbituric acid,” itself coined by Baeyer, perhaps from woman’s name Barbara, or perhaps from Latin barbata, in Medieval Latin usnea barbata, literally “bearded moss.” Second element is because it was obtained from uric acid. With chemical ending -ate (3).
barbiturate bar·bi·tu·rate (bär-bĭch’ər-ĭt, -ə-rāt’, bär’bĭ-tur’ĭt, -āt’, -tyur’-)
A salt or ester of barbituric acid.
Any of a group of barbituric acid derivatives that act as central nervous system depressants and are used as sedatives or hypnotics.
Any of a group of drugs that act as depressants of the central nervous system, are highly addictive, and are used primarily as sedatives and anticonvulsants. Phenobarbital and pentobarbital are examples of barbiturates.
any of a group of barbituric acid derivatives, used in medicine as sedatives and hypnotics. Contemporary Examples His sister, Leila, was found dead in a London hotel room in 2001 after taking an overdose of barbiturates. Prince Ali Reza Pahlavi Suicide: Tragic End to Iran’s Dynasty Stephen Kinzer January 4, 2011 She had taken an […]
- Barbituric acid
a white, crystalline, slightly water-soluble powder, C 4 H 4 N 2 O 3 , used chiefly in the synthesis of barbiturates. noun 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’-) n. An organic acid used in the […]
- 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