Source : Webster's Revised Unabridged Dictionary (1913)

Jargon \Jar"gon\, n. [F. jargon, OF. also gargon, perh. akin to
   E. garrulous, or gargle.]
   Confused, unintelligible language; gibberish; hence, an
   artificial idiom or dialect; cant language; slang. ``A
   barbarous jargon.'' --Macaulay. ``All jargon of the
   schools.'' --Prior.

         The jargon which serves the traffickers. --Johnson.

Jargon \Jar"gon\ (j[aum]r"g[o^]n), v. i. [imp. & p. p.
   {Jargoned} (-g[o^]nd); p. pr. & vb. n. {Jargoning}.]
   To utter jargon; to emit confused or unintelligible sounds;
   to talk unintelligibly, or in a harsh and noisy manner.

         The noisy jay, Jargoning like a foreigner at his food.
                                                  --Longfellow.

Jargon \Jar"gon\, n. [E. jargon, It. jiargone; perh. fr. Pers.
   zarg?n gold-colored, fr. zar gold. Cf. {Zircon}.] (Min.)
   A variety of zircon. See {Zircon}.

Source : WordNet®

jargon
     n 1: a characteristic language of a particular group (as among
          thieves); "they don't speak our lingo" [syn: {cant}, {slang},
           {lingo}, {argot}, {patois}, {vernacular}]
     2: a colorless (or pale yellow or smoky) variety of zircon
        [syn: {jargoon}]
     3: specialized technical terminology characteristic of a
        particular subject