ricinoleic acid UK /ˌɹʌɪ.sɪ.nəʊˌliː.ɪk ˈas.ɪd/US /ˌɹaɪ.sɪ.noʊˌli.ɪk ˈæs.ɪd/ noun1 •A crystalline unsaturated hydroxy fatty acid C₁₈H₃₄O₃ that yields esters important as plasticizers and whose glyceride (ricinolein) is the main component of castor oil.
