We will typically expand one side of the chest cavity at a time, with each surgery separated by six months to one year. The surgery involves a collaborative effort between thoracic surgery and plastic surgery. Ribs four through nine are approached.
Top definition. a tool. an offensive comment, mainly aimed towards the male of the species, when one is being particularly nasty, stupid, or facetious.
Learner's definition of INSTRUMENT. [count]. 1. : a tool or device used for a particular purpose. instruments of torture. The murder weapon was a blunt instrument. [=an object without sharp edges or points]. [+] more examples [-] hide examples [+] Example sentences [-] Hide examples.especially: a tool or device designed to do careful and exact work.. : a tool or device used for a particular purpose. instruments of torture. The murder weapon was a blunt instrument. [=an object without sharp edges or points]. [+] more examples [-] hide examples [+] Example sentences [-] Hide examples. especially: a tool or device designed to do careful and exact work.