What is the name of the horseshoe shaped bone where the tongue and the floor of the mouth attach?

The horseshoe-shaped bone where the tongue and the floor of the mouth attach is called the hyoid bone. It is located in the neck, above the thyroid cartilage, and serves as an anchor for the tongue and various muscles associated with swallowing and speech. The hyoid bone is unique because it does not articulate directly with any other bones in the skeleton.