caprylic acid

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. A liquid fatty acid, C₈H₁₆0₂, found in butter and other fats and oils and having a rancid taste. It is used in the manufacture of dyes and perfumes.

Wiktionary

1. n. organic chemistry A fatty acid, CH3(CH2)6COOH, obtained from butter and other animal fats, and used in the manufacture of perfumes and flavours.

WordNet 3.0

1. n. a fatty acid having a rancid taste; found in butter and other fats and oils