meiosis
noun [ U ] biology specialized uk/maɪˈəʊ.sɪs/ us/maɪˈoʊ.sɪs/
减数分裂（发生在有性生殖生物中的细胞分裂过程，一个细胞分为四个配子，每个拥有不同的混合染色体，一半存于原细胞中）
the type of cell division that happens as part of reproduction (= the process of producing young animals or plants), in which one cell divides into four gametes (= reproductive cells), each with a different mixture of chromosomes and half the number contained in the original cell
Compare: mitosis