impervious to water

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• Impervious — Im*per vi*ous, a. [L. impervius; pref. im not + per through + via way. See {Voyage}.] Not pervious; not admitting of entrance or passage through; as, a substance impervious to water or air. [1913 Webster] This gulf impassable, impervious. Milton …   The Collaborative International Dictionary of English

• impervious — [[t]ɪmpɜ͟ː(r)viəs[/t]] 1) ADJ GRADED: usu v link ADJ, usu ADJ to n If you are impervious to someone s actions, you are not affected or influenced by them. She seems almost impervious to the criticism from all sides... The political system there… …   English dictionary

• impervious — im|per|vi|ous [ımˈpə:viəs US ə:r ] adj [not before noun] [Date: 1600 1700; : Latin; Origin: impervius, from pervius allowing things to pass through , from per through + via way ] 1.) formal not affected or influenced by something and seeming not… …   Dictionary of contemporary English

• impervious — /ɪmˈpɜviəs / (say im perveeuhs) adjective 1. (sometimes followed by to) not pervious; impermeable: impervious to water. 2. (sometimes followed by to) impenetrable: impervious to reason. 3. not disposed to be influenced or affected: *Our early… …  

• water-repellent — /waw teuhr ri pel euhnt, wot euhr /, adj. having a finish that resists but is not impervious to water. [1895 1900] * * * …   Universalium

• Impervious surface — Impervious surfaces are mainly artificial structures, such as pavements, rooftops, sidewalks, roads, and parking lots covered by impenetrable materials such as asphalt, concrete, brick, and stone. Soils compacted by urban development are also… …   Wikipedia

• impervious — adjective 1) he seemed impervious to the chill wind Syn: unaffected by, untouched by, immune to, invulnerable to, insusceptible to, resistant to, indifferent to, heedless of, insensible to, unconscious of, oblivious to; proof against 2) an… …   Thesaurus of popular words

• water-repellent — adjective Date: 1896 treated with a finish that is resistant but not impervious to penetration by water …   New Collegiate Dictionary

• water table — the upper surface of the impervious strata on which the ground water lies below the surface of the earth …   Medical dictionary

• impervious —    Not permitting the flow of water [16] …   Lexicon of Cave and Karst Terminology

• Tar water — Tar Tar, n. [OE. terre, tarre, AS. teru, teoru; akin to D. teer, G. teer, theer, Icel. tjara, Sw. tj[ a]ra, Dan. ti[ae]re, and to E. tree. [root]63. See {Tree}.] A thick, black, viscous liquid obtained by the distillation of wood, coal, etc., and …   The Collaborative International Dictionary of English