From Longman Business DictionaryEuro.NMEuro.NM /ˌjʊərəʊ en ˈemˌjʊroʊ-/ noun FINANCEORGANIZATIONSa group of European stockmarkets that trade in the shares of companies which have new original ideas or products and are likely to grow and become successfulSince its creation in 1997, more than 400 European firms have been listed on Euro.NM.