Source : Webster's Revised Unabridged Dictionary (1913)

Vent \Vent\, v. t. [imp. & p. p. {Vented}; p. pr. & vb. n.
   {Venting}.]
   1. To let out at a vent, or small aperture; to give passage
      or outlet to.

   2. To suffer to escape from confinement; to let out; to
      utter; to pour forth; as, to vent passion or complaint.

            The queen of heaven did thus her fury vent.
                                                  --Dryden.

   3. To utter; to report; to publish. [Obs.]

            By mixing somewhat true to vent more lies. --Milton.

            Thou hast framed and vented very curious orations.
                                                  --Barrow.

   4. To scent, as a hound. [Obs.] --Turbervile.

   5. To furnish with a vent; to make a vent in; as, to vent. a
      mold.

Source : WordNet®

vented
     adj : supplied with a vent or vents for intake of air or discharge
           of gases