Diethylbarbituric

Part of speech: adjective

Definitions

1. Describing a chemical compound derived from barbituric acid with two ethyl groups attached to its molecular structure
2. Relating to a barbiturate substance in which two ethyl groups have been added to the parent barbituric acid molecule
3. Of or pertaining to a sedative-type compound formed by substituting diethyl groups onto the barbituric acid framework

Etymology: Diethylbarbituric is a chemical coinage, and its history runs through a famous name. Barbituric acid was first made in 1864 by the German chemist Adolf von Baeyer, who reportedly named it after a Munich pub where he and colleagues had met, the feast of St. Barbara being celebrated there; this origin story is often repeated but is not firmly documented, so it is best treated as a tale. The chemistry itself is more solid: the word breaks into "barbituric," meaning derived from barbituric acid, and "di-" plus "ethyl," indicating two ethyl groups attached to the molecule. The adjective is a technical descriptor built on that chemistry rather than a word with an older everyday life. Barbituric acid compounds became important in medicine from the early twentieth century, when substitutions on the core ring produced sedatives and hypnotics. Diethylbarbituric acid is one such variant, and the adjective is used to describe compounds and drugs belonging to this group.