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Definition of: tibia
(tib′ē·ə) noun plural tib·i·ae (tib′i·ē) or tib·i·as
1. Anat. The inner and larger of the two bones of the leg below the knee; the shin bone. See illustration under FOOT.
2. Entomol. The fourth or penultimate joint of the leg of an insect, between the femur and the tarsus.
3. An ancient flute or pipe provided with holes for the fingers, originally made of an animal's leg bone. [<L]
—tib′i·al adjective
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