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hardness
[ hahrd-nis ]
/ ˈhɑrd nɪs /
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noun
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Words nearby hardness
hard maple, hard mass, hard money, hardmouthed, hard neck, hardness, hard news, hard-nose, hard-nosed, hard nut to crack, hard of hearing
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How to use hardness in a sentence
British Dictionary definitions for hardness
hardness
/ (ˈhɑːdnɪs) /
noun
the quality or condition of being hard
one of several measures of resistance to indentation, deformation, or abrasionSee 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
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for hardness
hardness
[ härd′nĭs ]
A measure of how easily a mineral can be scratched. Hardness is measured on the Mohs scale.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.