testing machine

Webster's Dictionary (GCIDE)

1.The act of testing or proving; trial; proof. [1913 Webster]

2.(Metal.) The operation of refining gold or silver in a test, or cupel; cupellation. [1913 Webster]

Testing machine (Engin.), a machine used in the determination of the strength of materials, as iron, stone, etc., and their behavior under strains of various kinds, as elongation, bending, crushing, etc. [1913 Webster]