the area of the world consisting of countries where the US dollar is the main trading currency
some of the less developed countries in the dollar area
dollar area in American English
noun
those countries among which trade is conducted in U.S. dollars or in freely convertible currencies
Word origin
[1945–50]This word is first recorded in the period 1945–50. Other words that entered Englishat around the same time include: RNA, individual medley, poison pill, spin-off, taxi squad