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hardness
[ hahrd-nis ]
noun
- the state or quality of being hard:
the hardness of ice.
- a relative degree or extent of this quality:
wood of a desirable hardness.
- that quality in water that is imparted by the presence of dissolved salts, especially calcium sulfate or bicarbonate.
- unfeelingness or jadedness; callousness.
- harshness or austerity, as of a difficult existence.
- South Midland U.S. ill will; bad feelings:
There's a lot of hardness between those two boys.
- Mineralogy. the comparative ability of a substance to scratch or be scratched by another. Compare Mohs scale.
- Metallurgy. the measured resistance of a metal to indention, abrasion, deformation, or machining.
hardness
/ ˈhɑːdnɪs /
noun
- the quality or condition of being hard
- one of several measures of resistance to indentation, deformation, or abrasion See Mohs scale Brinell hardness number
- the quality of water that causes it to impair the lathering of soap: caused by the presence of certain calcium salts. Temporary hardness can be removed by boiling whereas permanent hardness cannot
hardness
/ härd′nĭs /
- A measure of how easily a mineral can be scratched. Hardness is measured on the Mohs scale.
Word History and Origins
Example Sentences
USC coach Lincoln Riley said after the Trojans’ victory in the Las Vegas Bowl, “There’s a toughness and a hardness that’s developing within this program.”
“There’s a toughness and a hardness that’s developing within this program right now,” Riley said.
The time groundstaff have between county games is not sufficient to prepare and roll a pitch to the hardness of an international surface.
"We examined different sand shapes, finding a sand that would give us hardness, combining elements of clay, silt and particle distribution to make sure that we had a high-binding strength soil," says McKay.
"We had a fabulous Mondo track at the Athens Olympics. I like the hardness of them. I definitely feel that they are a lot faster than tartan tracks," says Ms McCambridge.
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