释义
[ hahrd -nis ] SHOW IPA
/ ˈhɑrd nɪs / PHONETIC RESPELLING
SEE SYNONYMS FOR hardness ON THESAURUS.COM
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.
SEE MORE SEE LESS Origin of hardness before 900; Middle English hardnes, Old English heardnes. See hard, -ness
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
Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020
Example sentences from the Web for hardness His district, just south of Washington DC was among the hardness hit by the trembler.
FEMA’s Budget Disaster | Daniel Stone, Laura Colarusso| August 28, 2011| DAILY BEAST
When she felt his hardness ,” however, “the feelings evaporated.
Natalie Portman's Dad's Bizarre Novel | Marlow Stern| April 26, 2011| DAILY BEAST
I portray Mecca as it really was, which means in all its hardness and brutality.
7 Books for the Spiritually Starved | Spencer Bailey| September 18, 2010| DAILY BEAST
No tears rose; I was struck into hardness equal to his own, and with something added.
More Pages from a Journal | Mark Rutherford
It was as if she recognized in that member of sledge-hammer size and hardness a sure defense from all harm.
McClure's Magazine, Vol. XXXI, September 1908, No. 5 | Various
Twas as if the flood of her joy had swept away all hardness and disdain.
A Lady of Quality | Frances Hodgson Burnett
But he also added that, while he liked their hardness , he disliked their moderation.
A History of the United States | Cecil Chesterton
If a stone be scratched by a steel knife its hardness is below 6.
Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 5 | Various
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British Dictionary definitions for hardness 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
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
Words related to hardness firmness, sharpness, resoluteness, perseverance, backbone, constancy, permanence, endurance, solidity, durability, cohesion, maturity, aplomb, determination, assurance, adherence, security, balance, establishment, fastness
Scientific definitions for hardness 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.