The Collaborative International Dictionary
palmic acid
ricinoleic acid \ric`in*o"le*ic ac"id\, n. (Chem.) An organic acid ( C18H34O3) obtained from the castor-oil plant ( Ricinus communis, or Palma Christi) and other species of the family Euphorbiaceae; chemicaly it is d-12-hydroxyoleic acid ( CH3(CH2)5.CH(OH).CH2.CH=CH.(CH2)7COOH). Formerly called palmic acid.
Wiktionary
palmic acid
n. (context chemistry obsolete English) ricinoleic acid.