the policy of keeping one group of people apart from another and treating them differently, especially because of race, sex, or religion

The system of racial segregation that used to exist in South Africa was called apartheid. 南非曾经实施的把种族隔离开来的制度被称为种族隔离制度。

The community fought to end segregation in schools and housing. 这个社区为终止学校和住房的差别对待现象而奋起抗争。

the segregation of employment by gender 在就业方面按性别区别对待的情况

the separation of pairs of alleles (= different forms of the same gene) during meiosis (= the cell division that happens as part of the process of producing young animals or plants) so that they pass separately to separate gametes (= reproductive cells)

Mendel's first law states that genes do not blend, but pass intact from one generation to the next, after segregation. 孟德尔第一定律称基因不会混合，而是在等位基因分离后，完整地传给下一代。

Fertilization triggers segregation of chromosomes. 受精触发染色体分离。