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sclerometer

American  
[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.

sclerometer British  
/ ˌsklɪərəˈmɛtrɪk, sklɪəˈrɒmɪtə /

noun

  1. an instrument that determines the hardness of a mineral or metal by means of a diamond point

"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

Other Word Forms

Etymology

Origin of sclerometer

First recorded in 1875–80; sclero- + -meter

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.