Tibia

1. n. A musical instrument of the flute kind, originally made of the leg bone of an animal.
2. n. The inner, or preaxial, and usually the larger, of the two bones of the leg or hind limb below the knee.
3. n. The fourth joint of the leg of an insect. See Illust. under Coleoptera, and under Hexapoda.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.