furcula
noun
High School
1
A forked process or structure, generally two-pronged.
2
The forked bone formed by the fusion of the clavicles in birds, the wishbone or merrythought.
3
The (two-pronged) forked, somewhat tail-like organ held bent forward and secured by a catch beneath most species of Collembola (springtails), with which they jump by releasing the catch abruptly when alarmed.
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