The Collaborative International Dictionary
Thyrotomy
Thyrotomy \Thy*rot"o*my\, n. [Thyro- + Gr. ? to cut.] (Surg.) The operation of cutting into the thyroid cartilage.
Wikipedia
Thyrotomy
Thyrotomy may also refer to the cutting or biopsy the thyroid gland.
Thyrotomy (also called thyroidotomy, median laryngotomy, laryngofissure or thyrofissure) is an incision of the larynx through the thyroid cartilage.