word
hardness testing
HARD-nes TEST-ing
ˈhɑːrdnɪs ˈtɛstɪŋListen
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Syllable breakdown
hardnesstesting
Dictionary meaning
measurement of a material's resistance to permanent plastic deformation when a hard indenter is applied; common scales include Vickers, Brinell, and Rockwell; hardness correlates with wear resistance and yield strength
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