barbituric acid

 
Pronunciation: /ˌbɑːbɪˈtjʊərɪk, -ˈtʃʊərɪk/

noun

[mass noun] Chemistry
  • a synthetic organic acid from which the barbiturates are derived.
    • A cyclic derivative of urea and malonic acid; chemical formula: C4H4O3N2

Origin:

mid 19th century: from French barbiturique, from German Barbitursäure, from the given name Barbara + Säure 'acid'