Tibia \Tib"i*a\, n.; pl. {Tibiae}. [L.]
1. (Anat.) The inner, or preaxial, and usually the larger, of
the two bones of the leg or hind limb below the knee.
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2. (Zool.) The fourth joint of the leg of an insect. See
Illust. under {Coleoptera}, and under {Hexapoda}.
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3. (Antiq.) A musical instrument of the flute kind,
originally made of the leg bone of an animal.
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