Source : Webster's Revised Unabridged Dictionary (1913)

Ventilate \Ven"ti*late\, v. t. [imp. & p. p. {Ventilated}; p.
   pr. & vb. n. {Ventilating}.] [L. ventilatus, p. p. of
   ventilare to toss, brandish in the air, to fan, to winnow,
   from ventus wind; akin to E. wind. See {Wind} rushing air.]
   1. To open and expose to the free passage of air; to supply
      with fresh air, and remove impure air from; to air; as, to
      ventilate a room; to ventilate a cellar; to ventilate a
      mine.

   2. To provide with a vent, or escape, for air, gas, etc.; as,
      to ventilate a mold, or a water-wheel bucket.

   3. To change or renew, as the air of a room. --Harvey.

   4. To winnow; to fan; as, to ventilate wheat.

   5. To sift and examine; to bring out, and subject to
      penetrating scrutiny; to expose to examination and
      discussion; as, to ventilate questions of policy.
      --Ayliffe.

   6. To give vent; to utter; to make public.

            Macaulay took occasion to ventilate one of those
            starling, but not very profound, paradoxes. --J. C.
                                                  Shairp.

Source : WordNet®

ventilate
     v 1: expose to cool or cold air so as to cool or freshen; "air
          the old winter clothes"; "air out the smoke-filled
          rooms" [syn: {vent}, {air out}, {air}]
     2: expose to the circulation of fresh air so as to retard
        spoilage; "Wheat should be well ventilated"
     3: circulate through and freshen; "The gust of air ventilated
        the room"
     4: give expression or utterance to; "She vented her anger";
        "The graduates gave vent to cheers" [syn: {vent}, {give
        vent}]
     5: furnish with an opening to allow air to circulate or gas to
        escape; "The architect did not thnk about ventilating the
        storage space"