[seg.re.ga.tion] n (1555) 1: the act or process of segregating: the state of being segregated
2. a: the separation or isolation of a race, class, or ethnic group by enforced or voluntary residence in a restricted area, by barriers to social intercourse, by separate educational facilities, or by other discriminatory means b: the separation for special treatment or observation of individuals or items from a larger group "~ of gifted children into accelerated classes"
3: the separation of allelic genes that occurs typically during meiosis