1 impermeability | Definition of impermeability

impermeable

adjective
im路​per路​me路​able | \ (藢)im-藞p蓹r-m膿-蓹-b蓹l How to pronounce impermeable (audio) \

Definition of impermeable

: not permitting passage (as of a fluid) through its substance broadly : impervious

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Other Words from impermeable

impermeability \ (藢)im-​藢p蓹r-​m膿-​蓹-​藞bi-​l蓹-​t膿 How to pronounce impermeability (audio) \ noun

Examples of impermeable in a Sentence

an impermeable layer of rock a fabric impermeable to moisture

Recent Examples on the Web

Restoring areas of impermeable surfaces is one of the ways this takes place. Catalina Righter, baltimoresun.com/maryland/carroll, "Maryland court rules for state against Carroll County in pollution permit challenge," 12 Aug. 2019 Graphene is also conductive and quite impermeable to liquids, making it an ideal material for this kind of application. Daisy Hernandez, Popular Mechanics, "A Soft Skin 'E-Tattoo' Might Just Save Your Life," 26 June 2019 But wrap that same cucumber in an impermeable plastic sleeve and the decay slows down. National Geographic, "Grocery stores are packed with plastic. Some are changing.," 22 Apr. 2019 Don't use mastic with glass tiles; the impermeable tiles prevent the moisture in the mastic from evaporating, and the adhesive may discolor over time and be visible through the tile. Joseph Truini, Popular Mechanics, "Your Quick and Dirty Guide to Tiling a Kitchen Backsplash," 26 Apr. 2019 The only viable solution seems to be facilities like Onkalo鈥攄eep underground bunkers carved from impermeable rock, in geologically stable zones, where the waste can be redundantly sealed and then permanently buried. Tim Heffernan, Popular Mechanics, "Finland's Crazy Plan to Make Nuclear Waste Disappear," 10 May 2012 Waste will be sealed in the copper coffins, placed into the storage shafts, and surrounded by a thick layer of bentonite, a natural clay almost impermeable to water. Tim Heffernan, Popular Mechanics, "Finland's Crazy Plan to Make Nuclear Waste Disappear," 10 May 2012 For storms like Harvey, changes in land use that come with urbanization, such as replacing permeable surfaces like grass with impermeable surfaces like concrete, can cause big changes in water runoff. Kara Dapena, WSJ, "The Rising Costs of Hurricanes," 29 Sep. 2018 The thermal spring water and glycerin, a humectant that attracts water, in the formula work to instantly flood your skin with hydration, while the oil creates an impermeable barrier to lock it in. Rachel Jacoby Zoldan, Glamour, "The No-Frills Face Cream That Tackles the Toughest Dry Spots," 27 Aug. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'impermeable.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of impermeable

1697, in the meaning defined above

History and Etymology for impermeable

Late Latin impermeabilis, from Latin in- + Late Latin permeabilis permeable

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More Definitions for impermeable

impermeable

adjective

English Language Learners Definition of impermeable

technical : not allowing something (such as a liquid) to pass through

impermeable

adjective
im路​per路​me路​able | \ (藞)im-藞p蓹r-m膿-蓹-b蓹l How to pronounce impermeable (audio) \

Medical Definition of impermeable

: not permitting passage (as of a fluid) through its substance the plasma membrane of a red blood cell is relatively impermeable to sodium and calcium ions

Other Words from impermeable

impermeability \ (藢)im-​藢p蓹r-​m膿-​蓹-​藞bil-​蓹t-​膿 How to pronounce impermeability (audio) \ noun, plural impermeabilities

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