adjective: (anatomy) Of or pertaining to the thyroid cartilage of the larynx and the hyoid arch.
noun: (anatomy) Ellipsis of thyrohyoid muscle.. [(anatomy) A small quadrilateral muscle that arises from the thyroid cartilage, inserts into the thyrohyal of the hyoid bone, and functions to depress the hyoid bone and to elevate the thyroid cartilage.]