ricinoleic acid /ˌrɪsɪnəʊˈliːɪk, -ˈnəʊlɪɪk/

• 1. 

  N an oily unsaturated carboxylic acid found, as the glyceride, in castor oil and used in the manufacture of soap and in finishing textiles; 12-hydroxy-9-octadecanoic acid. Formula: C18H34O3 蓖麻油酸