different between hardness vs compactness
hardness
English
Etymology
From Middle English hardness, from Old English heardness, from heard + -ness. Equivalent to hard +? -ness.
Pronunciation
- (General American) enPR: härd?n?s, IPA(key): /?h??dn?s/
- (Received Pronunciation) IPA(key): /?h??dn?s/
- Hyphenation: hard?ness
Noun
hardness (countable and uncountable, plural hardnesses)
- The quality of being hard.
- An instance of this quality; hardship.
- (inorganic chemistry) The quantity of calcium carbonate dissolved in water, usually expressed in parts per million (ppm).
- The resistance to scratching, cutting, indentation or abrasion of a metal or other solid material.
- (physics) The penetrating ability of electromagnetic radiation, such as x-rays; generally, the shorter the wavelength, the harder and more penetrating the radiation.
- The measure of resistance to damage of a facility, equipment, installation, or telecommunications infrastructure when subjected to attack.
Translations
See also
- hardiness
References
- hardness in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.
Anagrams
- Dashners
hardness From the web:
- what hardness is quartz
- what hardness is glass
- what hardness can scratch glass
- what hardness is diamond
- what hardness is a number 2 pencil
- what hardness should water softener be set
- what hardness should water be
- what hardness is an ebony pencil
compactness
English
Etymology
compact +? -ness
Noun
compactness (uncountable)
- the state of being compact
Translations
compactness From the web:
- compactness meaning
- compactness what does it mean
- what is compactness in pes
- what is compactness in gerrymandering
- what are compactness laws
- what is compactness in topology
- what is compactness in image processing
- what is compactness in pes 2021
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