Knoop hardness


: the relative hardness of a material (as a metal) that is determined by the depth to which the bluntly pointed diamond pyramid of a special instrument will penetrate it

Word History


after F. Knoop, 20th century American chemist

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Dictionary Entries Near Knoop hardness

Cite this Entry

“Knoop hardness.” Dictionary, Merriam-Webster, Accessed 27 Feb. 2024.

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