secondary
adjective
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belonging to a lower class or rank
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not of major importance“played a secondary role in world events”
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being of second rank or importance or value
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depending on or incidental to what is original or primary“a secondary infection”
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inferior in rank or statuslowlyjunior-gradelower-rankingpettysubaltern
noun
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coil such that current is induced in it by passing a current through the primary coilsecondary coil
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the defensive football players who line up behind the linemen