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tester Definition
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tester
noun(test-er)one that tests or is used for testing
tester
noun(test-er)the canopy over a bed, pulpit, or altar
tester
noun(test-er)teston
tester
noun(test-er)any of several old European coins: such as
tester
noun(test-er)a shilling of Henry VIII of England decreasing in value to ninepence and then to sixpence in Shakespeare's time
tester
noun(test-er)a French silver coin of the 16th century worth between 10 and 141/2 sous
tester
noun(test-er)a field test of the beta version of a product (such as software) especially by testers outside the company developing it that is conducted prior to commercial release