furcula
/ˈfɜːkjʊlə/noun
(pl. furculae /-liː/)
1- Zoology a forked organ or structure, in particular【动】叉状器官（或结构）, 尤指：
1.1
- the wishbone of a bird鸟胸的叉骨。
1.2
- the forked appendage at the end of the abdomen in a springtail, by which the insect jumps跳虫的弹器。
派生词
furcular
adjective词源
mid 19th cent.: from Latin, diminutive of furca 'fork'.