The Collaborative International Dictionary of English v.0.48:

Benzole \Ben"zole\ Benzol \Ben"zol\, n. [Benzoin + L. oleum
   oil.] (Chem.)
   An impure benzene, used in the arts as a solvent, and for
   various other purposes. See Benzene.
   [1913 Webster]

   Note: It has great solvent powers, and is used by
         manufacturers of India rubber and gutta percha; also
         for cleaning soiled kid gloves, and for other purposes.
         [1913 Webster]

WordNet (r) 3.0 (2006):

benzol
    n 1: a colorless liquid hydrocarbon; highly inflammable;
         carcinogenic; the simplest of the aromatic compounds [syn:
         benzene, benzine, benzol]