jumping bean
noun
1- a plant seed that jumps as a result of the movement of a moth larva which is developing inside it跳豆（一种内部有寄生飞蛾幼虫蠕动的植物种子）。
1.1
- Affected seeds are found in several plants of the family Euphorbiaceae, in particular the Mexican plant Sebastiana pavoniana, the seeds of which can contain larvae of the moth Cydia saltitans.受此种伤害的有大戟科数种植物的种子, 尤其是墨西哥植物五彩地阳桃［拉丁名Sebastiana pavoniana］, 该植物的种子内可能有小卷蛾［拉丁名Cydia saltitans］的幼虫。