'Thoracotomy' definitions:
Definition of 'thoracotomy'
From: WordNet
noun
Surgical incision into the chest walls opening up the pleural cavity
Definition of 'Thoracotomy'
From: GCIDE
- Thoracotomy \Tho`ra*cot"o*my\, n. [Gr. ?, ?, thorax + ? to cut.] (Surg.) The operation of opening the pleural cavity by incision. [1913 Webster]