race

n. An inexact method of grouping people by ancestry whose categories vary from one locale to another and which usually includes people of recent European ancestry as one race, people of recent African ancestry as a race, and people from East Asia as a race and sometimes people whose ancestry was native to the Americas before European conquest as a fourth race. It should be noted that only about 6% of genetic variance is found within races with no genes accurately defining the races while each race has more variance within it than between it and other races. Racial categorization of individuals varies depending on the method of categorization.