hardness
IPA: hˈɑrdnʌs
noun
- The quality of being hard.
- An instance of this quality; hardship.
- (inorganic chemistry) The quantity of calcium carbonate dissolved in water, usually expressed in parts per million (ppm).
- The resistance to scratching, cutting, indentation or abrasion of a metal or other solid material.
- (physics) The penetrating ability of electromagnetic radiation, such as x-rays; generally, the shorter the wavelength, the harder and more penetrating the radiation.
- The measure of resistance to damage of a facility, equipment, installation, or telecommunications infrastructure when subjected to attack.
- (countable, engineering) A measure of how hard a material is
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Examples of "hardness" in Sentences
- Thus wilful hardness is justly punished with judicial hardness.
- Choose a wheel hardness, which is rated using the durometer scale.
- And that durare is applied to the idea of hardness, as well as that of existence, we see in Horace, Epod.xvi. ferro duravit secula.
- Yet the hardness was there, and it was what enabled him to run his ketch single-handed and to wring a livelihood out of the fighting Solomons.
- Then you take chopped up betel nut (or areca nut, which is similar to nutmeg in hardness and texture) and fold the leaf over the the ingredients.
- This supposed "hardness" -- I detest these vague phrases, but one knows what is meant -- of the Rationalist temper is one of the strangest myths the clergy have invented.
- In the first place, "I do agnize a natural and prompt alacrity I find in hardness," though Heaven forbid but that I should perceive beauty wherever it exists (seeing that a "thing of beauty is a joy for ever").
- On the contrary, as all resistance whatsoever of the dictates of conscience, even in the way of natural efficiency, brings a kind of hardness and stupefaction upon it; so the resistance of these peculiar suggestions of the Spirit will cause in it also a judicial hardness, which is yet worse than the other.
- A Scumble is generally a tint made of some colour mixed with white; its usual effect is to render the part of the picture where it is employed, somewhat cooler, grayer, and less defined than before; hence it is of great service in connecting any tendency to muddiness or dirtiness of colouring; and also to what is called hardness, or over-distinctness of detail.