reichs·mark (rīks'märk', rīKHs'-) n.
pl.reichsmark or reichs·marks A monetary unit of Germany from 1925 to 1948.
[German : Reichs, genitive of Reich, realm (from Middle High German rīch, from Old High German rīchi; see reg- in Indo-European roots) + Mark, unit of currency (from Middle High German marke; see mark2).]