[1] : The Collaborative International Dictionary of English v.0.48

hardness \hard"ness\, n. as. heardness.
   1. the quality or state of being hard, literally or
      figuratively.
      1913 webster

            the habit of authority also had given his manners
            some peremptory hardness.             --sir w.
                                                  scott.
      1913 webster

   2. min. the cohesion of the particles on the surface of a
      body, determined by its capacity to scratch another, or be
      itself scratched; -- measured among minerals on a scale of
      which diamond and talc form the extremes.
      1913 webster

   3. chem. the peculiar quality exhibited by water which has
      mineral salts dissolved in it. such water forms an
      insoluble compound with soap, and is hence unfit for
      washing purposes.
      1913 webster

   note: this quality is caused by the presence of calcium
         carbonate, causing temporary hardness which can be
         removed by boiling, or by calcium sulphate, causing
         permanent hardness which can not be so removed, but may
         be improved by the addition of sodium carbonate.
         1913 webster

[2] : WordNet (r) 2.0

hardness
     n 1: the property of being rigid and resistant to pressure; not
          easily scratched; measured on mohs scale ant: softness
     2: devoid of passion or feeling syn: unfeelingness, callousness,
         insensibility
     3: the quality of being difficult to do; "he assigned a series
        of problems of increasing hardness"
     4: excessive sternness; "severity of character"; "the harshness
        of his punishment was inhuman"; "the rigors of boot camp"
        syn: severity, harshness, rigor, rigour, inclemency,
         stiffness
see also:
softness unfeelingness callousness insensibility severity harshness 
rigor rigour inclemency stiffness 

[3] : Moby Thesaurus II by Grady Ward, 1.0

158 moby thesaurus words for "hardness":
   philistinism, abstruseness, arduousness, armor, asperity,
   astringency, austerity, bothersomeness, burdensomeness, callosity,
   callousness, callus, closeness, cohesiveness, coldbloodedness,
   coldheartedness, coldness, compactness, complexity, complication,
   congestedness, congestion, consistence, consistency, crabbedness,
   crampedness, crowdedness, cruelty, deepness, denseness, density,
   difficultness, difficulty, durability, esoterica, firmness,
   flintiness, formidable defenses, fundamentalism, gluiness,
   grimness, hairiness, hard heart, hard shell, hardenedness,
   hardheartedness, hardiness, hardness of heart, hardship, harshness,
   heart of stone, heartlessness, impenetrability, impenitence,
   impenitentness, impermeability, imperviousness, impliability,
   imporosity, inclemency, incompressibility, induration,
   inexorability, inexorableness, inflexibility, infrangibility,
   insensitiveness, insensitivity, insolence, intricacy, inuredness,
   irrepentance, jammedness, knottiness, laboriousness, lastingness,
   leatherlikeness, mercilessness, nonrepentance, obduracy,
   obdurateness, obstinacy, onerousness, oppressiveness, orthodoxy,
   pitilessness, precisianism, profoundness, profundity, purism,
   puritanism, reconditeness, relative density, relentlessness,
   remorselessness, resistance, rhinoceros hide, rigidity, rigidness,
   rigor, rigorousness, ropiness, roughness, ruggedness, ruthlessness,
   seared conscience, severity, short shrift, solidity, solidness,
   soundness, specific gravity, spissitude, stability, stamina,
   staunchness, sternness, stiffness, stoniness, stoutness, strength,
   strenuousness, stringency, stringiness, stubbornness, sturdiness,
   temper, tenacity, tender mercies, thick skin, thickness,
   toilsomeness, toughness, troublesomeness, unabjectness,
   unbendingness, unbreakability, unbreakableness,
   uncompassionateness, uncompromisingness, uncontriteness, unfeeling,
   unfeelingness, unforgivingness, ungentleness, unmercifulness,
   unnaturalness, unrelentingness, unremorsefulness, unresponsiveness,
   unsympatheticness, unyieldingness, vicissitude, vigor, viscidity,
   viscosity, viscousness, vitality

Hardness >> H Words
Hardness, definition of term: Hardness
hardness_pag1.html

nanoindenter nano-indenter nano hardness tester Indentation Elastic Modulus
...Introduction to the NHT Nano Hardness Tester. The Nano Hardness Tester ... Fastest Nano Hardness Tester available.. *Hardness & Young's modulus ... ..
http://www.microphotonics.com/nht.html, score=100, date indexed=January 20, 2006, 8:07 am

Hardness Testing
...Hardness Conversion Table related to Rockwell C Hardness Scale (hard ... Hardness Conversion Table related to Rockwell C Hardness Scale (hard ... ..
http://www.gordonengland.co.uk/hardness/, score=93, date indexed=December 29, 2005, 7:38 pm

Equotip Hardness Tester
...Hardness Testing Utilities - Hardness Conversion Calculator. Online ... HARDNESS TESTER TH150 Integrated 1 piece Metal Hardness Tester. Click ... ..
http://www.corvib.com/equotip/equotip.htm, score=89, date indexed=December 29, 2005, 8:18 pm

Mohs Scale of Hardness
...In 1812 the Mohs scale of mineral hardness was devised by the German ... Emerald and aquamarine are varieties of beryl with a hardness of 8.. 9 ... ..
http://www.amfed.org/t_mohs.htm, score=77, date indexed=December 29, 2005, 6:26 pm

Bob's Rock Shop: Mineral Hardness
...The hardness taken the short way across the blade has a hardness of 7 ... your fingernail has a hardness of 2.5, ....a penny has a hardness of ... ..
http://www.rockhounds.com/rockshop/hardness1.html, score=76, date indexed=January 20, 2006, 10:00 am

Mineral Hardness Testing from Rockman
...... test on an unknown rock or mineral using Mohs Scale of hardness. ... The steel blade of the average knife usually has a hardness of about 5. ... ..
http://www.rocksandminerals.com/hardness/mohs.htm, score=73, date indexed=December 29, 2005, 7:41 pm

Mineral Gallery: Hardness
...Mostly gemstones have a hardness of 7 or more. Hardness also plays a ... But as hardness increases, the difference in hardness greatly ... ..
http://mineral.galleries.com/minerals/hardness.htm, score=65, date indexed=January 20, 2006, 6:35 am

THE HARDNESS OF THE HEART
... ..
http://www.islamworld.net/deadheart.htm, score=61, date indexed=December 29, 2005, 7:32 pm

Hardness
...The Rockwell hardness tester to measure the hardness of metal measures ... Using standard hardness conversion tables, the Rockwell hardness value ... ..
http://www.calce.umd.edu/general/Facilities/Hardness_ad_.htm, score=57, date indexed=January 10, 2006, 3:21 pm

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