• (n.) The operation of cutting into the larynx and the upper part of the trachea, -- a frequent operation for obstruction to breathing.
(lә-ring″go-tra″ke-ot´o-me) incision of the larynx and trachea.
La·ryn`go·tra`che·ot'o·my noun [ Larynx + tracheotomy .] (Surg.) The operation of cutting into the larynx and the upper part of the trachea, -- a frequent operation for obstruction to breathing. 
laryngotracheotomy Incision of the larynx and trachea.