Source : Webster's Revised Unabridged Dictionary (1913)

Snort \Snort\, v. i. [imp. & p. p. {Snorted}; p. pr. & vb. n.
   {Snorting}.] [OE. snorten; akin to snoren. See {Snore}.]
   1. To force the air with violence through the nose, so as to
      make a noise, as do high-spirited horsed in prancing and
      play. --Fairfax.

   2. To snore. [R.] ``The snorting citizens.'' --Shak.

   3. To laugh out loudly. [Colloq.] --Halliwell.

Source : WordNet®

snorting
     adj : breathing noisily and forcefully through the nostrils;
           "snored with loud snorting noises"
     n : an act of forcible exhalation [syn: {puffing}, {huffing}]