Nearby Words
Materials Testing www.rexnord.com/innovationcenter A2LA, Metallurgical, Hardness, SEM, Rockwell, Brinell, BHN, & RC Tests
Metallurgy Lab www.metengr.com/ One of the best labs in the country We are an A2LA Accredited Lab.
Water Hardness Analyzers www.heyl.de/ Test Your Water Quality Online Water hardness, alkalinity.
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noun
1.
the state or quality of being hard: the hardness of ice.
2.
a relative degree or extent of this quality: wood of a desirable hardness.
3.
that quality in water that is imparted by the presence of dissolved salts, especially calcium sulfate or bicarbonate.
4.
unfeelingness or jadedness; callousness.
5.
EXPANDharshness or austerity, as of a difficult existence.
6.
7.
Mineralogy. the comparative ability of a substance to scratch or be scratched by another. Compare Mohs scale.
8.
COLLAPSEMetallurgy. the measured resistance of a metal to indention, abrasion, deformation, or machining.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Based on the Random House Dictionary, © Random House, Inc. 2012.
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Hardness
is always a great word to know.
So is quincunx. Does it mean:
| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |
| an extraordinary or unusual thing, person, or event; an exceptional example or instance. |
Example Sentences
- Her hair, streaked grey, was pulled back from her face and gave it a certain hardness of emphasis.
- Only the hardness of the stone enables such elaborate workmanship.
- But once in the brain, that hardness is a disadvantage.
Collins
World English Dictionary
| hardness (ˈhɑːdnɪs) | |
| —n | |
| 1. | the quality or condition of being hard |
| 2. | Mohs scale See Brinell hardness number one of several measures of resistance to indentation, deformation, or abrasion |
| 3. | 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 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
American Heritage
Science Dictionary
hardness  (härd'nĭs) Pronunciation Key
A measure of how easily a mineral can be scratched. Hardness is measured on the Mohs scale. |
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Word Dynamo Rating For Hardness
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