an instrument that determines the hardness of a mineral or metal by means of a diamond point
Derived forms
sclerometric (ˌsklɪərəˈmɛtrɪk)
adjective
sclerometer in American English
(sklɪrˈrɑmətər)
noun
an instrument for measuring the relative hardness of a substance by determining the pressure needed to cause a diamond point to scratch its polished surface