Noun
money of account (usually uncountable, plural moneys of account or monies of account)
(finance) A denomination of value used in keeping accounts, for which there may, or may not, be an equivalent coin.
Synonyms: settlement currency, unit of account
The total effective demand for commodities in the market is limited to the number of units of money of account that dealers are prepared to offer, and the number they are prepared to offer over any period of time is limited according to the number they hope to receive. Ralph George Hawtrey