Mesitylene
Pronunciation : Me*sit"y*lene
Part of Speech : n.
Definition : Defn: A colorless, fragrant liquid, C6H3(CH3)3, of the benzene series of hydrocarbons, obtained by distilling acetone with sulphuric acid. -- Me*sit`y*len"ic, a.
(Chem.)
Source : Webster's Unabridged Dictionary, 1913