Background for hardness

hardness

/ˈhɑːrdnəs/ /ˈhɑːdnəs/

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noun

The quality of being hard.

Examples :

"The hardness of the diamond makes it ideal for cutting glass. "

quality material

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noun

An instance of this quality; hardship.

Examples :

"The recent loss of her job added another layer of hardness to her already difficult life. "

quality condition suffering

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noun

The quantity of calcium carbonate dissolved in water, usually expressed in parts per million (ppm).

Examples :

"The water softener increased the hardness of the tap water, making it easier to wash dishes. "

chemistry substance environment geology

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noun

The resistance to scratching, cutting, indentation or abrasion of a metal or other solid material.

Examples :

"The diamond's exceptional hardness makes it ideal for cutting glass. "

material quality technical science

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noun

The penetrating ability of electromagnetic radiation, such as x-rays; generally, the shorter the wavelength, the harder and more penetrating the radiation.

Examples :

"The hardness of the X-rays used in the dentist's office allows them to pass through your teeth and show the dentist any problems. "

physics energy technology science

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noun

The measure of resistance to damage of a facility, equipment, installation, or telecommunications infrastructure when subjected to attack.

Examples :

"The military base's hardness was tested against simulated bombing runs to assess its ability to withstand an actual attack. "

military technology building war