furcula

[fur-kyuh-luh]
noun, plural furculae [fur-kyuh-lee] .
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.

Origin:
1855–60; < Latin: a forked prop. See fork, -ule

furcular, adjective
Dictionary.com Unabridged

furculum

[fur-kyuh-luhm]
noun, plural furcula [fur-kyuh-luh] .

Origin:
< Neo-Latin

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
furcula or furculum (ˈfɜːkjʊlə, ˈfɜːkjʊləm)
 
n , pl -lae, -la
any forklike part or organ, esp the fused clavicles (wishbone) of birds
 
[C19: from Latin: a forked support for a wall, diminutive of furca fork]
 
furculum or furculum (ˈfɜːkjʊlə, ˈfɜːkjʊləm, -ˌliː, -lə)
 
n
 
[C19: from Latin: a forked support for a wall, diminutive of furca fork]

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Example sentences
For birds to evolve from theropods, the lost furcula would have to reappear.
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