Tibia

·noun The inner, or preaxial, and usually the larger, of the two bones of the leg or hind limb below the knee.

II. Tibia ·noun A musical instrument of the flute kind, originally made of the leg bone of an Animal.

III. Tibia ·noun The fourth joint of the leg of an insect. ·see ·Illust. under Coleoptera, and under Hexapoda.