柯林斯词典speciation /ˌspiːʃɪˈeɪʃən/ 1. N the evolutionary development of a biological species, as by geographical isolation of a group of individuals from the main stock 物種形成 返回 speciation剑桥词典the process by which new types of living things are thought to develop from existing ones during evolution 物種形成 返回 speciation