Hardness (Noun)
Meaning 1
The property of being rigid and resistant to pressure; not easily scratched; measured on Mohs scale.
Classification
Nouns denoting attributes of people and objects.
Examples
- The mineral's hardness was tested by scratching it with a metal file to determine its position on the Mohs scale.
- Rubies are known for their exceptional hardness, making them ideal for use in high-end jewelry.
- The engineer measured the hardness of the metal alloy to determine its suitability for the new industrial application.
- Diamonds are the hardest substance known, with a Mohs hardness of 10, making them extremely durable.
- The geologist examined the rock sample to assess its hardness and potentially identify its composition.
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Meaning 2
Devoid of passion or feeling; hardheartedness.
Classification
Nouns denoting attributes of people and objects.
Synonyms
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Meaning 3
Excessive sternness; "severity of character"; "the harshness of his punishment was inhuman"; "the rigors of boot camp".
Classification
Nouns denoting attributes of people and objects.
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Meaning 4
A quality of water that contains dissolved mineral salts that prevent soap from lathering; "the costs of reducing hardness depend on the relative amounts of calcium and magnesium compounds that are present".
Classification
Nouns denoting attributes of people and objects.
Meaning 5
The quality of being difficult to do; "he assigned a series of problems of increasing hardness"; "the ruggedness of his exams caused half the class to fail".
Classification
Nouns denoting attributes of people and objects.