furcula

noun, plural fur·cu·lae [fur-kyuh-lee] /ˈfɜr kyəˌli/.

1. the forked clavicular bone of a bird; wishbone.
2. the ventral, forked appendage on the abdomen of a springtail that the insect uses in springing itself into the air.

noun, plural fur·cu·la [fur-kyuh-luh] /ˈfɜr kyə lə/.

1. furcula.

noun plural -lae (-ˌliː) or -la (-lə)

1. any forklike part or organ, esp the fused clavicles (wishbone) of birds