Definition of hardness

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Hardness (n.) The peculiar quality exhibited by water which has mineral salts dissolved in it. Such water forms an insoluble compound with soap, and is hence unfit for washing purposes..

Lern More About Hardness

Hardness :: Hardness (n.) The peculiar quality exhibited by water which has mineral salts dissolved in it. Such water forms an insoluble compound with soap, and is hence unfit for washing purposes..
Obduredness :: Obduredness (n.) Hardness.
Obduration :: Obduration (n.) A hardening of the heart; hardness of heart.
Obfirmation :: Obfirmation (n.) Hardness of heart; obduracy.
Brassy :: Brassy (a.) Of or pertaining to brass; having the nature, appearance, or hardness, of brass..
Occidental :: Occidental (a.) Possessing inferior hardness, brilliancy, or beauty; -- used of inferior precious stones and gems, because those found in the Orient are generally superior..
Petrify :: Petrify (v. i.) To become stone, or of a stony hardness, as organic matter by calcareous deposits..
Rigor :: Rigor (n.) Stiffness of opinion or temper; rugged sternness; hardness; relentless severity; hard-heartedness; cruelty.
Tungsten :: Tungsten (n.) A rare element of the chromium group found in certain minerals, as wolfram and scheelite, and isolated as a heavy steel-gray metal which is very hard and infusible. It has both acid and basic properties. When alloyed in small quantities with steel, it greatly increases its hardness. Symbol W (Wolframium). Atomic weight, 183.6. Specific gravity, 18..
Diamond :: Diamond (n.) A precious stone or gem excelling in brilliancy and beautiful play of prismatic colors, and remarkable for extreme hardness..
Disthene :: Disthene (n.) Cyanite or kyanite; -- so called in allusion to its unequal hardness in two different directions. See Cyanite.
Mollify :: Mollify (v. t.) To soften; to make tender; to reduce the hardness, harshness, or asperity of; to qualify; as, to mollify the ground..
Flintiness :: Flintiness (n.) The state or quality of being flinty; hardness; cruelty.
Spinel :: Spinelle (n.) A mineral occuring in octahedrons of great hardness and various colors, as red, green, blue, brown, and black, the red variety being the gem spinel ruby. It consist essentially of alumina and magnesia, but commonly contains iron and sometimes also chromium..
Sear :: Sear (a.) To burn (the surface of) to dryness and hardness; to cauterize; to expose to a degree of heat such as changes the color or the hardness and texture of the surface; to scorch; to make callous; as, to sear the skin or flesh. Also used figuratively..
Induration :: Induration (n.) Hardness of character, manner, sensibility, etc.; obduracy; stiffness; want of pliancy or feeling..
Irony :: Irony (a.) Resembling iron taste, hardness, or other physical property..
Opal :: Opal (n.) A mineral consisting, like quartz, of silica, but inferior to quartz in hardness and specific gravity..
Iron :: Iron (n.) Like iron in hardness, strength, impenetrability, power of endurance, insensibility, etc.;.
Steel :: Steel (n.) Fig.: Anything of extreme hardness; that which is characterized by sternness or rigor.
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