Mellitic \Mel*lit"ic\, a. [Cf. F. mellitique. See Mellite.]

(Chem.)
   (a) Containing saccharine matter; marked by saccharine secretions; as, mellitic diabetes.
   (b) Pertaining to, or derived from, the mineral mellite.

Mellitic acid (Chem.), a white, crystalline, organic substance, C6(CO2H)6, occurring naturally in combination with aluminium in the mineral mellite, and produced artificially by the oxidation of coal, graphite, etc., and hence called also graphitic acid.

Source: Webster's Revised Unabridged Dictionary (1913)