mutable[ˈmju:təbl]

adj.易变的，性情不定的
‖ mutability[ˌmju:təˈbiliti]n. 易变性
mutability of human efforts人间沧桑
mutably adv.无常地，性情不定地
mutate[mju:ˈteit]v.变异
mutation n.变化，转变，突变
mutation factor突变因子
mutation in gene基因突变
mutation theory突变学说
mutation trend突变趋向
mutational adj. mutational interpretation of evolution对进化论的突变解释
mutational range突变范围
mutationism n. 突变论
mutationist n. 突变论者