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 ?
requests that the imagery be collected in the early spring of 2018 and the impervious
There are several methods for estimating impervious surface cover based on land-use class or gross density of activity.
A supplementary solution entails installing rain gardens for impervious pavement to drain into.
Sanitation District officials had wanted to leave the ponds unlined, saying they would sit on clay soil that is relatively impervious.
For Water Quality Control, the required on-site treatment volume depends on the final amount of impervious area on the site, regardless of the site's previous condition.
EHP regrets the incorrect and unintentional inference in "Paving Paradise: The Peril of Impervious Surfaces" [Environ Health Perspect 113:A456-A462 (2005)] that coal tar pitch is used in the actual hot-mix asphalt used to pave roads.
Ever wonder why men suffer from color blindness, hemophilia, and other conditions women seem impervious to?
Surfaces in the parking floors are painted in bright colours and kept clean with impervious finishes.
They seem to be impervious to the growing body of scientific evidence that defines Global Warming as a non-problem.
When rain falls on impervious surfaces such as roads, parking lots and rooftops, it picks up and transports hazardous pollutants into surface waters.
Portland, Oregon, to create impervious surface polygons using the existing LiDAR data and orthophotos.
When they find this an impossible task, they embark on a personal mission--that of saving the children who, so far, seem impervious to alien weapons.