I learned new term today, and captured it here for posterity.  It seems there is much discussion on this and the business case for it.

Payments News: Nova Introduces Dynamic Currency Conversion – March 14, 2005

Dynamic Currency Conversion allows international cardholders in the U.S. the option to have their purchases instantly converted at checkout into their local currency.

Currency conversion is calculated at a competitive exchange rate, and the U.S. dollar amount, conversion rate, and home currency amount are all printed on the receipt. Merchants, MSP’s and other NOVA partners have the opportunity to share in the revenue generated from conversion fees.