pseudo-cumene

from The Collaborative International Dictionary of English v.0.48

Pseudo-cumene \Pseu`do-cu"mene\, n. [Pseudo- + cumene.] (Chem.)
   A hydrocarbon of the aromatic series, metameric with
   mesitylene and cumene, found in coal tar, and obtained as a
   colorless liquid.
   [1913 Webster]