(formerly) a cupronickel coin and monetary unit of East Germany: replaced by the Deutsche mark in 1990.
Origin of ostmark
1945–50; < German: east mark
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
(formerly) the standard monetary unit of East Germany, divided into 100 pfennigs
Word Origin for Ostmark
German, literally: east mark
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012