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sclerometer

[skli-rom-i-ter] /sklɪˈrɒm ɪ tər/
noun
1.
any instrument for determining with precision the degree of hardness of a substance, especially a mineral, as by measuring the pressure necessary to pierce or scratch it.
Origin
1875-1880
1875-80; sclero- + -meter
Related forms
sclerometric
[skleer-uh-me-trik, skler-] /ˌsklɪər əˈmɛ trɪk, ˌsklɛr-/ (Show IPA),
adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for sclerometer

sclerometer

/sklɪəˈrɒmɪtə/
noun
1.
an instrument that determines the hardness of a mineral or metal by means of a diamond point
Derived Forms
sclerometric (ˌsklɪərəˈmɛtrɪk) adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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