Relating to the fibula, which is the smaller bone in your lower leg running parallel to the larger shinbone.
From Latin 'fibula' meaning clasp or brooch, named for the bone's shape. The suffix '-are' indicates relation to the anatomical structure.
The fibula got its name because ancient Romans thought it looked like a fibula (a brooch used to fasten clothing), showing how anatomists named bones after everyday objects they resembled!
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