butyric acid

 
Pronunciation: /bjuːˈtɪrɪk/

noun

[mass noun] Chemistry
  • a colourless syrupy liquid organic acid found in rancid butter and in arnica oil.
    • Alternative name: butanoic acid; chemical formula: C3H7COOH

Origin:

mid 19th century: butyric from Latin butyrum (see butter) + -ic