The Collaborative International Dictionary palmic Ricinoleic \Ric`in*o"le*ic\, a. (Chem.) Pertaining to, or designating, a fatty acid analogous to oleic acid, obtained from castor oil as an oily substance, C18H34O3 with a harsh taste. Formerly written ricinolic and formerly referred to as palmic. Related phrases: palmic acid Wiktionary Related phrases: palmic acid