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sub·test | \ ˈsəb-ˌtest 
\
\variants:
or less commonly sub-test
plural subtests or sub-tests
Definition of subtest
: a test that is part of a larger test
The program has the machine perform one of these subtests dozens of times, each time with different data, and then tells it to go on to the next subtest.— Tracy Kidder A child's scores on these subtests are added up, and the tester converts the total to an IQ …— Ulric Neisser
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Time Traveler for subtest
The first known use of subtest was in 1884
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