impervious

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im·per·me·a·ble

(im-per'mē-ă-bĕl),
Not permeable; not permitting the passage of substances (for example, liquids, gases) or heat through a membrane or other structure.
Synonym(s): impervious
[L. im- permeabilis, not to be passed through]

impervious

(ĭm-pĕr′vē-ŭs) [L. impervius]
Unable to be penetrated.
References in periodicals archive ?
Imperviousness has been firmly established as a robust and meaningful measure of urban development (e.
Recent resistance to accreditation or certification in the NCHC has cited the imperviousness to institutional uniqueness that certification or its equivalent implies.
From a shortlist of over 40 inventions, plastics' "relatively low cost, ease of manufacture, versatility and imperviousness to water," were cited as major benefits in their use for an "enormous and expanding" range of products over the past century.
This contract concerns the work of structural steel, steel siding, roofing, locks and imperviousness.
This feature, along with nanometer sized, non-connected pores throughout its cementitious matrix, impart imperviousness and durability against adverse conditions or aggressive agents.
In the wake of emancipation, formerly enslaved people resisted the freedom of wage labour, confirming anti-abolitionist views of their imperviousness to capitalist incentives.
Finally, the four "Developed" land-cover classes in the NLCD ("Open Space," "Low," "Medium," and "High" intensities), which are based on defined threshold values for imperviousness, were left as individual classes.
anthropologists for their "almost incredible imperviousness to the
The data captured by satellite can be transformed into several helpful measures, including land surface temperatures (LST) and percent surface imperviousness (SI).
The agency's imperviousness to reform is a testament to the political power of ranchers and big-game hunters, but a 2012 letter from the American Society of Mammologists to the bureaucratic parent of Wildlife Services, the USDA Animal and Plant Health Inspection Service, might cause even those interests to reconsider their position.
change in imperviousness from 2001 to 2006) or based on static estimates of these parameters at a "snapshot" (i.
Describing the imperviousness of the Turkish real estate sector from the economic crisis in 2008 as an extraordinary success, Favell projected that there is a high possibility that the real estate bubble will burst even if the political stability continues.