Meaning of sclerometer

scle•rom•e•ter

Pronunciation: (skli-rom'i-tur), [key]
— n.
  1. any instrument for determining with precision the degree of hardness of a substance, esp. a mineral, as by measuring the pressure necessary to pierce or scratch it.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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