Impervious

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impervious

[im′pər·vē·əs]
(science and technology)

Impervious

Resistant to water.

impervious

In ceramics, that degree of vitrification evidenced visually by complete resistance to dye penetration; generally signifies zero absorption of water, except for floor and wall tile, which may absorb up to 0.5% water.
References in periodicals archive ?
Estimation of urban imperviousness and its impacts on storm water systems.
Figure 2 displays the comparison of impervious cover "predicted" by the best-performing regression model to the "actual" imperviousness measured by the 2006 NLCD.
Protection of in-stream biota from urban impacts: minimize catchment imperviousness or improve drainage design?
200 1 [55 gallon] containers) compared to the amount of rooftop imperviousness that they drain and therefore require some additional routing of overflow to rain gardens.
Components of our environment that once were timeless manifestations of the earth's constancy and its imperviousness to human influence are literally melting away and changing before our eyes.
Spun at high temperature from strands of the polymer polyacrylonitrile, carbon fiber's combination of strength, lightness, and relative imperviousness to heat and cold has landed it a role in the Space Shuttle's nosecone and countless satellites.
It was the great open wound that wouldn't heal, whose imperviousness to all the sparkling renderings and bold redevelopment plans for the site seemed to only grow as Ground Zero's ceaseless stagnancy charged closer and closer to the fifth anniversary of 9/11.
Anglo imperviousness to others' language and culture is an old international joke; it should not become the new Aboriginal policy.
As an example of the dollar's imperviousness to reports of petro-switches, the UAE announcement had almost no effect on world currency markets, whose traders are nervous enough to respond to slight rumours of wheat blight in the Caucasus to shift in and out of currencies with lightning speed.
Cole provides the near-mythical imperviousness to violence that saves the day.
In their imperviousness and plainness, the white rendered walls of the new wing are modern reinterpretations of Iberian vernacular, as are the patio spaces that infiltrate the complex, subtly filtering light, setting up intriguing through views.
WES estimated future imperviousness using a methodology developed during the Damascus/Boring Concept Planning process.