One of the mysteries of the English language finally explained.
(of a substance) allowing water to pass through; permeable.‘pervious rocks’
soft, cushiony, cushioned, squashy, compressible, yieldingView synonyms
- ‘Because of the very low water-cement ratio and the open matrix that allows air movement through the concrete matrix, pervious concrete can dry out very quickly.’
- ‘The use of impervious surfaces (like pavement and concrete) can be minimized and replaced with pervious surfaces (like stone and gravel) whenever possible.’
- ‘What we're doing is taking some areas that used to be pervious and we're putting a [residence] building there, so the water now gets captured.’
- ‘The top sheet is formed of a fluid pervious material, e.g., a fibrous material.’
- ‘All around it is limestone, which anyone who has studied geography at school will know is pervious and water disappears through it.’
- ‘A green sod roof reduces runoff from impermeable surfaces, while a pervious parking lot allows infiltration of water into the ground.’
- ‘The parking lot uses pervious limestone and is landscaped with indigenous plants.’
- ‘The City of Seattle currently credits pervious surfaces as stormwater management reduction.’
- ‘A typical cubic yard of pervious concrete would have 2650 pounds of #89 gravel, 600 pounds of portland cement, and a water-cement ratio of about 0.30.’
- ‘Recently, our regional promotion groups have identified what they think of as emerging opportunity in the area of pervious pavements.’
- ‘The brownfield site had no trees or pervious surfaces, and it generated a range of environmental problems for the surrounding neighborhood.’
Early 17th century: from Latin pervius ‘having a passage through’ (based on via ‘way’) + -ous.
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