DUROMETER
Source: 567
Du‐rom″e‐ter (?), n. [[L. durus hard + -meter.]] An instrument for measuring the degree of hardness; especially, an instrument for testing the relative hardness of steel rails and the like.
Source: 567
Du‐rom″e‐ter (?), n. [[L. durus hard + -meter.]] An instrument for measuring the degree of hardness; especially, an instrument for testing the relative hardness of steel rails and the like.