(a.) Not pervious; not admitting of entrance or passage through; as, a substance impervious to water or air.
Example Sentences:
(1) Placement of impervious knitted Dacron velour aortic grafts in baboons reproduced platelet consumption that progressively normalized over six weeks postoperatively.
(2) Below-zero temperatures crowned the top of the US from Idaho to Minnesota, where many roads still had an inch-thick plate of ice, polished smooth by traffic and impervious to ice-melting chemicals.
(3) There is all sorts of opacity which makes it easy for an employee to suffer retaliation.” Despite recent reforms to improve transparency and accountability, the organisation remains impervious to public scrutiny, with no established mechanism for freedom of information – a right which more than 100 governments around the world have enshrined in law, and is openly advocated by UN bodies such as Unesco.
(4) Persons suffering from major narcissistic problems generally are assumed to be impervious to time-limited treatments.
(5) Or you can do it at the desk with your smartphone if you can remember the website address, don’t mind the data roaming charges, can remember your national insurance number and are impervious to the long queue developing behind you”.
(6) On the other hand, the performance of a material that is liquid-proof is absolute--it is impenetrable and can be accurately described as impervious.
(7) A mathematical solution has been obtained for the indentation creep and stress-relaxation behavior of articular cartilage where the tissue is modeled as a layer of linear KLM biphasic material of thickness h bonded to an impervious, rigid bony substrate.
(8) This is the essence of the problem, and sadly, Festinger's words ring true today: the conviction of humans is all too often impervious to the very evidence in front of them.
(9) The amplitude of quantal events is impervious to marked changes in presynaptic depolarization and is not affected by experimental procedures which promote accumulation of calcium ions in the terminals.
(10) Many such cases prove impervious to extensive articulation therapy, yet physical management may constitute "over-correction" with undesirable sequelae.
(11) Purified thymidylate synthetase can be assayed radiochemically using labelled deoxyuridine monophosphate as substrate, but cells are impervious to deoxyuridine monophosphate and so intracellular thymidylate synthetase activity cannot be assayed in this way.
(12) Heseltine's achievements have been matched by conspicuous failures, but his self belief is almost thrillingly impregnable, making him quite impervious to any such impression.
(13) It is rife with secrecy, top-down managerial manipulation, impervious to any outside scrutiny, contemptuous of any questioning, and has embraced extensive surveillance and discriminatory policing of religious and racial minorities.
(14) These actions of YM14673 were not due to a direct interference with brain TRH binding or a nature impervious to a TRH-degrading enzyme.
(15) The numerous tight junctions, impervious to the tracer, are always accompanied by a profusion of microfilaments.
(16) A newborn baby with a large unruptured omphalocele was successfully treated by covering the sac with a skin-like polymer membrane that is flexible, elastic, and impervious to bacteria and water.
(17) Bateman's unspeakable imaginings are the disease of an imperviously complacent world.
(18) In these measurements with an impervious, plane-ended indenter, the equilibrium deformation was systematically greater than values predicted from the instant response by the linear biphasic theory.
(19) "He appears impervious even to input from top Afghans."
(20) A tractor owned by a member of Greece’s far-right Golden Dawn is parked outside of a shelter and a dozen young men from Afghanistan rest against its wheels, grateful for the shade and impervious to the protest.
Repellent
Definition:
(a.) Driving back; able or tending to repel.
(n.) That which repels.
(n.) A remedy to repel from a tumefied part the fluids which render it tumid.
(n.) A kind of waterproof cloth.
Example Sentences:
(1) The effects of common repellents on the membrane fluidity of Escherichia coli were measured by the fluorescence polarization of the probe 1,6-diphenyl-1,3,5-hexatriene in liposomes made of lipids extracted from the bacteria and in membrane vesicles.
(2) It is suggested that the capacity of large doses of L3T4+ cells to protect mice against lethal GVHD is a reflection of T helper function: the cellular immunity provided by the donor L3T4+ cells enables the host to repel pathogens entering through damaged mucosal surfaces, with the result that GVHD becomes sublethal.
(3) Repellent effect of the Mannich bases (methoxyphenol derivatives) on Aedes aegypti mosquitoes and Xenopsylla cheopis fleas was revealed under laboratory and field conditions.
(4) We have recently prepared a carbon fibre micro-electrode (mCFE) which specifically pretreated and coated with Nafion (a negatively charged polymer which repels acids such as 3,4-dihydroxyphenylacetic acid (DOPAC)) allows the direct selective detection of the oxidation of DA and 5-HT in nanomolar concentration in vitro and that of extracellular basal levels of cerebral 5-HT in vivo (peak B at +240 mV).
(5) A couple of years later, he patented a method of producing a water-repellent textile.
(6) These compounds possess insecticidal and repellent properties.
(7) Tory toffs repelling undesirable immigrants, providing better schools, using welfare reform as a pathway to work, clearing vandals, yobs and drunks from the streets and standing up to our masters in Brussels would be very popular, and the word would soon be forgotten.
(8) Repellent addition has previously been shown to stimulate MCP demethylation.
(9) Of 33 compounds tested, 8 were repellents for B. bacteriovorus strain UKi2: n-caproate, alanine, isoleucine, leucine, phenylalanine, tyrosine, cobaltous chloride, and hydronium ion.
(10) The CDC and other health agencies have been operating for months on the assumption that Zika causes brain defects, and they have been warning pregnant women to use mosquito repellent, avoid travel to Zika-stricken regions and either abstain from sex or rely on condoms.
(11) But maybe, just maybe, they won’t, for they represent real forces and articulate real passions that Labour and the Conservatives, and now the Lib Dems, have so far utterly failed to repel.
(12) The treatment involved the use of repelling magnets for the distalization of the upper right molar which was in a class II relationship.
(13) The most important stabilizing factor for the intramolecular proton transfer is the zinc ion, which lowers the pKa of zinc-bound water and electrostatically repels the proton.
(14) Both sexes were attracted to the odor of R-(-)-carvone and repelled by the odor of (+)-citronellol.
(15) The paint whooshed down through the freshwater, but as soon as it hit the saltwater it was repelled, spreading out laterally as if the pigment had hit an invisible horizon.
(16) In bacterial chemotaxis, transmembrane receptor proteins detect attractants and repellents in the medium and send intracellular signals that control motility.
(17) Iain Lobban, the director of GCHQ, the government's eavesdropping and encrypting agency, last week used his first public speech to call for an aggressive approach to cyber attacks, and warned of the dangers of adopting the sort of defensive strategy famously symbolised by France's Maginot line, which was meant to repel the Germans and failed.
(18) 7.53pm BST Pedant repellant Style guide: GEORGE: What is Holland?
(19) Current control measures, stressing the use of mosquito nets, insect repellent, and residual insecticides designed primarily for the less mobile population of rice-farming communities are less effective among more mobile people.
(20) Soldiers damaged three of the vessels before clashes in which the militants were eventually repelled.