surgery
Chirurgia is the Italian term for surgery. It refers to the medical specialty that uses operative manual and instrumental techniques on a patient to investigate and/or treat a pathological condition such as a disease or injury, to help improve bodily function or appearance or to repair unwanted ruptured areas. Chirurgia can also refer to the actual procedure or operation itself.
Surgery is an important medical procedure.
This sentence is stating that 'surgery', or 'la chirurgia' in Italian, is perceived as an important part of medical procedures.
Plastic surgery is very popular.
In this instance, the term 'la chirurgia' is coupled with 'plastica', referring to plastic surgery. The sentence asserts that plastic surgery is widely popular.
Cardiac surgery saves many lives.
In this sentence, 'la chirurgia' is paired with 'cardiaca', referring to cardiac or heart surgery. It denotes that cardiac surgery is an essential procedure that saves numerous lives.