*sebacic*

a. [ L. sebum tallow: cf. F. sébacique. ] (Chem.) Of or pertaining to fat; derived from, or resembling, fat; specifically, designating an acid (formerly called also sebic, and pyroleic, acid), obtained by the distillation or saponification of certain oils (as castor oil) as a white crystalline substance. [ 1913 Webster ]