Source : Webster's Revised Unabridged Dictionary (1913)

Synonymic \Syn`o*nym"ic\, n. [Cf. G. synonymik. See
   {Synonymous}.] (Gram.)
   The science, or the scientific treatment, of synonymous
   words.

Synonymic \Syn`o*nym"ic\, Synonymical \Syn`o*nym"ic*al\, a.
   Of or pertaining to synonyms, or synonymic; synonymous.