Reserve city. Banking In the national banking system of the United States, any of certain cities in which the national banks are required (--U. S. Rev. Stat. sec. 5191) to keep a larger reserve (25 per cent) than the minimum (15 per cent) required of all other banks. The banks in certain of the reserve cities (specifically called central reserve cities) are required to keep their reserve on hand in cash; banks in other reserve cities may keep half of their reserve as deposits in these banks (--U. S. Rev. Stat. sec. 5195).
 In reserve, in keeping for other or future use; in store; as, he has large quantities of wheat in reserve; he has evidence or arguments in reserve.
 Reserve air. Physiol. Same as Supplemental air, under Supplemental.
 Syn: -- Reservation; retention; limitation; backwardness; reservedness; coldness; restraint; shyness; coyness; modesty.

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