people who are believed to belong to the same genetic stock; "some biologists doubt that there are important genetic differences between races of human beings";
(biology) a taxonomic group that is a division of a species; usually arises as a consequence of geographical isolation within a species;
the flow of air that is driven backwards by an aircraft propeller;
compete in a race; "he is running the Marathon this year"; "let''s race and see who gets there first";
step on it; "He rushed down the hall to receive his guests"; "The cars raced down the street";
cause to move fast or to rush or race; "The psychologist raced the rats through a long maze";
to work as fast as possible towards a goal, sometimes in competition with others; "We are racing to find a cure for AIDS";