define: impervious
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- WordReference Random House Unabridged Dictionary of American English © 2016. im•per•vi•ous (im pûr′vē əs), adj. 1  not permitting penetration or passage; impenetrable:The coat is impervious to rain.  incapable of being injured or impaired:impervious to wear and tear.
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Permeable pavingupdate Permeable paving is a range of sustainable materials and techniques for permeable pavements with a base and subbase that allow the movement of stormwater through the surface. In addition to reducing runoff, this effectively traps suspended solids and filters pollutants from the water.
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impaired verb (used with object) 1. to make or cause to become worse; diminish in ability, value, excellence, etc.; weaken or damage: to impair one's health; to impair negotiations. verb (used without object) 2. to grow or become worse; lessen. noun.
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- This investigation examines the possibility that impervious. (i.e., disconfirming) messages are perceived to be more competent than endorsements. (i.e., confirming messages) in response to a person’s self-disclosed negative self-. experience. A principle of competent impervious communication was derived from self-.
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barrier barrier bar·ri·er (bār'ē-ər) n. A structure, such as a fence, built to bar passage. A boundary or limit. An obstacle or impediment. Something that separates or holds apart. Something immaterial that obstructs or impedes behavior. A physical or biological factor that limits the migration, interbreeding, or free movement of individuals or populations.
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Glossary Silver Spring, Maryland, USA. Pervious concrete is a special type of concrete with a high porosity used for concrete. flatwork applications that allows water from precipitation and other sources to pass. through it, thereby reducing the runoff from a site and recharging ground water levels.
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barrier Define barrier: something material that blocks or is intended to block passage — barrier in a sentence something material that blocks or is intended to block passage; a natural formation or structure that prevents or hinders movement or action…
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- Perjurious-definition of Perjurious by the Free Online Dictionary ... perВ·juВ·ry (pГ»r j-r). n. pl. perВ·juВ·ries. 1. Law The deliberate, willful giving of false, misleading, or incomplete testimony under oath. 2.
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- If the purpose of installing pervious pavement is not for NPDES permit compliance, then variation from certain siting and design requirements may be allowed. Contact the Office of Storm Water Management – Design (OSWMD). 1.2 Definition Pervious pavements allow stormwater to filter through voids in the pavement surface into an underlying rock reservoir where it is temporarily stored and infiltrated into the surrounding materials. While pervious pavement designs may vary, they all have a similar structure consisting of a surface pavement layer with an underlying reservoir layer. Other terms such as ‘permeable pavement’ or ‘porous pavement’ are used in literature to describe what Caltrans has termed “pervious pavement.” Pervious pavements consist of a
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- Impermissible definition: not permissible ; not allowed | Meaning, pronunciation, translations and examples English Dictionary | Thesaurus | Translator | Grammar | Scrabble | Blog English
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- A pervious surface is a surface that allows infiltration through the pavement section. Allowable pervious surfaces for a lot coverage credit are porous concrete, porous asphalt, permeable pavers, modular grid pavement, and grass modular grid pavement per Appendix C of the 2009 King County Surface Water Design Manual.Below explains general criteria to consider a surface pervious.llowable pervious surfaces for a lot coverage credit are porous concrete, porous asphalt, permeable pavers, modular grid pavement, and grass modular grid pavement per Appendix C of the 2009 King County Surface Water Design Manual.
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- Definition of IMPETRATE. transitive verb. 1. : to obtain by request or entreaty.2. : to ask for: entreat. — im·pe·tra·tion \ˌim-pə-ˈtrā-shən\ noun. ADVERTISEMENT.efinition of IMPETRATE. transitive verb. 1. : to obtain by request or entreaty.
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- A weir is an impervious barrier constructed across a river to raise the water level on the upstream side. The water is raised up to the required height and the water then flows over the weir. In a weir the water overflows the weir, but in a dam the water overflows through a special place called a spillway. Weirs have ...
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impervious The definition of impervious is not being able to be penetrated or not able to be hurt. 1  An example of impervious is a fabric that does not allow any liquid to pass through.  An example of impervious is a figurine made out of indestructible material.
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implore Definition of implore. implored. ; imploring. transitive verb. 1 : to call upon in supplication : beseech. 2 : to call or pray for earnestly : entreat implored the crowd to be quiet.
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- luster noun [U] (SPECIAL QUALITY). › the ​quality of being ​attractive or ​special: The ​commercial ​district around the ​theater had ​lost ​its luster, ​becoming a ​magnet for the ​homeless and ​driving ​moviegoers ​elsewhere. lustrous adjective [not gradable] us /ˈlʌs·trəs/ › This ​conditioner will give ​your ​hair a lustrous ​glow.
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impair im·pair. tr.v. im·paired, im·pair·ing, im·pairs. To cause to weaken, be damaged, or diminish, as in quality: an injury that impaired my hearing; a severe storm impairing communications. [Middle English. , from Old French. , from Vulgar Latin. : Latin. , causative pref.
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impertinent im·per·ti·nent. adj. 1. Exceeding the limits of propriety or good manners; improperly forward or bold: scolded the impertinent child for talking rudely. 2.
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resistant 1. characterized by or showing resistance; resisting. 2. a. impervious to the action of corrosive substances, heat, etc: a highly resistant surface. b. (in combination): a heat-resistant surface.
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- Definition. A concrete slab placed on grade, sometimes having insulation board or an impervious membrane beneath it.
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Glossary Pervious Concrete-Pervious concrete is a special type of concrete with a high porosity used for concrete flatwork applications that allows water from precipitation and other sources to pass through it, thereby reducing the runoff from a site and recharging ground water levels.
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- impregnate meaning, definition, what is impregnate: to cause something, usually a solid substance, to absorb something, usually a liquid: . Learn more.
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- Impurity Impurity—An impurity is any component present in the excipient, drug substance, or drug product that is not: the desired product, a product-related substance, or excipient, (including buffer components).It may be either process-or product-related.long with other ingredients (excipients, inactives) it subsequently it is used to formulate, the drug product. It can be composed of the desired active material, product-related substances, product—or process related impurities (subsequently removed) It also may contain other components, including vehicles, or buffers.
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impervious This piece of fabric is impervious to liquid. adjective. The definition of impervious is not being able to be penetrated or not able to be hurt. An example of impervious is a fabric that does not allow any liquid to pass through. An example of impervious is a figurine made out of indestructible material.
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Introduction On an MSDS, impervious is a term used to describe protective gloves and other protective clothing. If a material is impervious to a chemical, then that chemical cannot readily penetrate through the material or damage the material. Different materials are impervious (resistant) to different chemicals.
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- impedancenoun [ U ] /ɪmˈpiː.dəns/ /ɪmˈpiː.dəns/ specialized. › the total resistance of electrical equipment to alternating current. Thesaurus: synonyms and related words. Electricity & electronics. anodize. anti-static. chargeable. charger.