Lauritz Melchior lau·ritz·melc·hior uncommon noun 1. United States operatic tenor (born in Denmark) noted for his Wagnerian roles (1890-1973) SynonymsMelchiorLauritz MelchiorLauritz Lebrecht Hommel Melchior Related words Broader terms tenor WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.