a race, people, or nation, as the Germans during the Nazi period, whose members consider themselves superior to all others and therefore justified in conquering and ruling them.
Origin
1925-30
British Dictionary definitions for master race
master race
noun
1.
a race, nation, or group, such as the Germans or Nazis as viewed by Hitler, believed to be superior to other races German name Herrenvolk
master race in Culture
master race definition
The expression used by the Nazis in Germany for the race they wanted to create — a pure race of white people suited to rule the world. Extermination was the Nazis' main tool for making the Germans pure. (SeeHolocaust.)