Trimesitic \Tri`me*sit"ic\, a. [Pref. tri- + mesitylene + -ic.]
(Chem.)
Of, pertaining to, or designating, a tribasic acid,
{C6H3.(CO2)3}, of the aromatic series, obtained, by the
oxidation of mesitylene, as a white crystalline substance.
[Written also {trimesic}.]
[1913 Webster]