Medical Dictionary
2control
noun
Medical Definition of CONTROL
1
: an act or instance of controlling something <control of acute intermittent porphyria>
2
: one that is used in controlling something: as a : an experiment in which the subjects are treated as in a parallel experiment except for omission of the procedure or agent under test and which is used as a standard of comparison in judging experimental effects—called also control experiment b : one (as an organism, culture, or group) that is part of a control
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