1. 分離したり隔離したりする行為(the act of segregating or sequestering)
2. 少数派グループ用に別の設備を提供する社会制度(a social system that provides separate facilities for minority groups)
3. 対立遺伝子のそれぞれの組の要員が異なる配偶子で現れる減数分裂の間の対立遺伝子の分離(the separation of paired alleles during meiosis so that members of each pair of alleles appear in different gametes)