Not pervious; not admitting of entrance or passage through; as, a substance impervious to water or air.
Not susceptible of being passed through, or penetrated. Generally refers to the percolation of water.
A solid that does not allow a liquid to pass through its surface; impenetrable.[xii] In this context it refers to the ability of rainwater to pass through unnatural surfaces around and near a building or the building's parking lot.
Impenetrable. Completely resisting entrance of liquids.
a material that water cannot pass through
not allowing entrance or passage-example: a surface such as cement that does not allow water to pass through it Minnehaha: The Big Cover-Up
Surfaces that will not allow things to pass through. Such as hard surfaces that do not allow water to pass through.
not admitting of passage or capable of being affected; "a material impervious to water"; "someone impervious to argument"
Description of a material that prevents passage of a fluid (i.e., asphalt surfaces)
Impervious is the term given to soil which has become impenetrable because of foot traffic, construction etc.
does not let liquid (water) pass through
Unable to be penetrated, no way through.
Impervious soil is soil in which the spacing of the soil particles is so close as to allow only very slow passage of water. For example, movement of water through a typical clay (an "impervious" soil) may be only 1/1,000,000 as fast as through a typical sand.
not allowing water to pass through or penetrate it.
A term denoting the resistance to penetration by water or plant roots.
a bed or stratum of material through which water will not move under ordinary hydrostatic pressure
a layer which does not allow water to pass through it.
Said of a rock that does not permit the passage of fluids under the pressure conditions ordinarily found in the subsurface.
is a term used to describe materials which resist the passage of water. - i.e. water will not dissolve in them, nor pass through them in any way.
the quality or state of being impermeable; resisting penetration by water or plant roots. Impervious ground cover like concrete and asphalt affects quantity and quality of runoff.
1. Incapable of having things passed through to penetrate. 2. Not being affected by something.
Resistant to movement of water.
Incapable of being penetrated.
The degree of vitrification evidenced visually by complete resistance to dye penetration.
not capable of being passed through, damaged, or disturbed. (Water is not able to flow through impervious surfaces, such as asphalt roads and concrete sidewalks.)
A surface that cannot be easily penetrated; for instance, rain does not readily penetrate asphalt or concrete surfaces.
A material that does not allow another substance to pass through or penetrate it.
An adjective describing a material through which water either cannot pass or through which it passes with great difficulty.
Not allowing, or allowing only with great difficulty, the movement of water.
Not easily penetrated by roots or water.