The operation of making an incision into the pharynx, to remove a tumour or anything that obstructs the passage.(noun)
Scarification or incision of the tonsils(noun)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "pharyngotomy" in a sentence
"Sub-hyoid pharyngotomy, which consists in opening the pharynx by a mesial vertical incision carried through the hyo-thyreoid membrane, may be called for, as in the case of a denture, the hooks of which have penetrated the wall of the pharynx."