hardness

1. n. The quality or state of being hard, literally or figuratively. Source: opted

2. n. 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. Source: opted

3. n. 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. Source: opted

4. n. the property of being rigid and resistant to pressure; not easily scratched; measured on Mohs scale Source: wordnet

5. n. a quality of water that contains dissolved mineral salts that prevent soap from lathering Source: wordnet

6. n. devoid of passion or feeling; hardheartedness Source: wordnet

7. n. the quality of being difficult to do Source: wordnet

8. n. excessive sternness Source: wordnet

9. 1. The quality or state of being hard, literally or figuratively. The habit of authority also had given his manners some peremptory hardness. Sir W. Scott. 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. 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. 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. Source: webster

10. The cohesion of the particles on the surface of a body,determined by its capacity to scratch another, or be itselfscratched;-measured among minerals on a scale of which diamond andtalc form the extremes. Source: adambom

11. n:100 n. the property of being rigid and resistant to pressure; not easily scratched; measured on Mohs scale n. a quality of water that contains dissolved mineral salts that prevent soap from lathering n. the quality of being difficult to do Source: ecdict

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