laryngotracheotomy

Century Dictionary and Cyclopedia

1. n. Incision into the larynx and the trachea involving the cricoid and one or more of the upper tracheal rings.

Wiktionary

1. n. surgery The operation of cutting into the larynx and the upper part of the trachea.

GNU Webster's 1913

1. n. (Surg.) The operation of cutting into the larynx and the upper part of the trachea, -- a frequent operation for obstruction to breathing.