a. [ L. pervis; per + via a way. See Per-, and Voyage. ] 1. Admitting passage; capable of being penetrated by another body or substance; permeable; as, a pervious soil. [ 1913 Webster ]

[ Doors ] . . . pervious to winds, and open every way. Pope. [ 1913 Webster ]

2. Capable of being penetrated, or seen through, by physical or mental vision. [ R. ] [ 1913 Webster ]

God, whose secrets are pervious to no eye. Jer. Taylor. [ 1913 Webster ]

3. Capable of penetrating or pervading. [ Obs. ] Prior. [ 1913 Webster ]

4. (Zool.) Open; -- used synonymously with perforate, as applied to the nostrils or birds. [ 1913 Webster ]

n. The quality or state of being pervious; as, the perviousness of glass. Boyle. [ 1913 Webster ]