us·ance /ˈjuzṇ(t)s/
 票據期限;匯票兌現期限


 Us·ance n.
 1. Use; usage; employment. [Obs.]
 2. Custom; practice; usage. [Obs.]
 3. Interest paid for money; usury. [Obs.]
 4. Com. The time, fixed variously by the usage between different countries, when a bill of exchange is payable; as, a bill drawn on London at one usance, or at double usance.

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 usance
      n 1: the period of time permitted by commercial usage for the
           payment of a bill of exchange (especially a foreign bill
           of exchange)
      2: (economics) the utilization of economic goods to satisfy
         needs or in manufacturing; "the consumption of energy has
         increased steadily" [syn: consumption, {economic
         consumption, use, use of goods and services]
      3: accepted or habitual practice [syn: custom, usage]