[f. TEST v.2 + -ING1.] The action of TEST v.2; putting to the test, trying, proving; in quot. 1687, subjecting to the Test Act.

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1687.  Good Advice, 61. The end of Testing and Persecuting.

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1827.  Coleridge, in Lit. Rem. (1839), IV. 317. A philosophy, which has for its object the trial and testing of the weights and measures themselves.

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1839, 1842.  [see TEST v.2 4].

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1860.  Merc. Marine Mag., VII. 141. The application of a severe strain in testing has an injurious effect on a cable.

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  b.  attrib. and Comb. Pertaining to or used for testing, as testing-box, -machine, -office, station, etc.

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1876.  Preece & Sivewright, Telegraphy, 272. At certain stations along the line the wires are led into testing-boxes for the purpose of affording facilities for crossing, disconnecting, and putting them to earth…. The testing station is always the most important station on the circuit.

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1877.  Knight, Dict. Mech., 2538/2. In Fairbanks’s testing-machine, the crushing, breaking, or deflecting force is applied … by a cross-head.

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1890.  W. J. Gordon, Foundry, 111. In the same range as the roller shop is the laboratory, and further on is the testing office.

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1905.  Daily Chron., 22 April, 6/4. A six-cylinder racing car with a testing body passed at a speed that was not less than forty-five miles an hour.

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