larva
/ˈlɑːvə/noun
(pl. larvae /-viː/)
1- the active immature form of an insect, especially one that differs greatly from the adult and forms the stage between egg and pupa, e.g. a caterpillar or grub（昆虫的）幼虫。比较NYMPH（义项2）。
1.1
- an immature form of other animals that undergo some metamorphosis, e.g. a tadpole（其他经历蜕变过程的动物的）幼体（如蝌蚪）。
派生词
larval
adjectivelarvicide
noun词源
mid 17th cent. (denoting a disembodied spirit or ghost)： from Latin， literally 'ghost， mask'.