Akademik

circulating medium
noun
: a medium of exchange (as coin, bank notes, or government notes) that passes from hand to hand without endorsement

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1. any coin or note passing, without endorsement, as a medium of exchange.
2. such coins or notes collectively.
[1790-1800]

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circulating medium
Money passing from hand to hand, as coin, banknotes, etc
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Main Entry:medium

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circulating medium,
a medium of exchange; currency.

Useful english dictionary. 2012.