Definition of hardness
1 : the quality or state of being hard
2a : the cohesion of the particles on the surface of a mineral as determined by its capacity to scratch another or be itself scratched — compare mohs' scaleb : resistance of metal to indentation under a static load or to scratching
Examples of hardness in a Sentence
the hardness of a diamond
The wood's hardness makes it suitable for carving.
Before 12th Century
First Known Use of hardness
before 12th century
HARDNESS Defined for English Language Learners
Definition of hardness for English Language Learners
: the quality or state of being hard
Seen and Heard
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