Source : Webster's Revised Unabridged Dictionary (1913)

Pasigraphy \Pa*sig"ra*phy\, n. [Gr. ? for all (dat. pl. of ?
   all) + -graphy.]
   A system of universal writing, or a manner of writing that
   may be understood and used by all nations. --Good.

Source : WordNet®

Pasigraphy
     n : an artificial international language using characters (as
         mathematical symbols) instead of words to express ideas