Defn: Pertaining to, or designating, an acid, C11H18O2, of the propiolic acid series, obtained indirectly from undecylenic acid as a white crystalline substance.
UNDECREED
Un`de*creed", a.
1. Etym: [Pref. un- not + decreed.]
Defn: Not decreed.
2. Etym: [1st pref. un- + decree.]
Defn: Reversed or nullified by decree, as something previously decreed.
UNDECYL
Un"de*cyl, n. Etym: [Undecane + -yl.] (Chem.)
Defn: The radical regarded as characteristic of undecylic acid.
UNDECYLENIC
Un*dec`y*len"ic, a. (Chem.)
Defn: Pertaining to, or designating, an acid C11H20O2, homologous with acrylic acid, and obtained as a white crystalline substance by the distillation of castor oil.