Tĭb'ĭ-ȧ, n.

noun

Tĭb'ĭ-ȧ, n. [Lat.] 1. (Anat.) The shin-bone; the larger of the two bones which form the second segment of the leg. Brande.

Sense 2. (Antiq.) An instrument of the flute kind, originally constructed of the leg-bone of an animal.