from The Century Dictionary.

  • noun An apparatus invented by Behrens for testing the hardness of steel rails.

from the GNU version of the Collaborative International Dictionary of English.

  • noun An instrument for measuring the degree of hardness; especially, an instrument for testing the relative hardness of steel rails and the like.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun An instrument used to measure the hardness or stiffness of a material, especially of an elastomer, such as rubber. A simple durometer consists of a movable tip on a spring with a dial gauge.


Sorry, no etymologies found.


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  • A device for measuring hardness (not what you might think). More commonly used for plastics and rubber, this device also measures density. The hardness of roller derby wheels, for instance, are measured with a durometer.

    September 20, 2009