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. [ 1913 Webster ] 2. To provide with a vent, or escape, for air, gas, etc.; as, to ventilate a mold, or a water-wheel bucket. [ 1913 Webster ] 3. To change or renew, as the air of a room. Harvey. [ 1913 Webster ] 4. To winnow; to fan; as, to ventilate wheat. [ 1913 Webster ] 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. [ 1913 Webster ] 6. To give vent to; to utter; to make public. [ 1913 Webster ] Macaulay took occasion to ventilate one of those startling, but not very profound, paradoxes. J. C. Shairp. [ 1913 Webster ] | 
