The Collaborative International Dictionary of English v.0.48:

Suberic \Su*ber"ic\, a. [L. suber the cork tree: cf. F.
   sub['e]reque.] (Chem.)
   Of or pertaining to cork; specifically, designating an acid,
   C6H12.(CO2H)2, homologous with oxalic acid, and obtained
   from cork and certain fatty oils, as a white crystalline
   substance.
   [1913 Webster]