IPA: //ˌreɪdiəʊˈsɜːrdʒəri//
KK: /ˈreɪdioʊˌsɜrʤəri/
A medical procedure that uses focused radiation to treat or destroy diseased tissue, such as tumors, without the need for traditional surgery.
The doctor recommended radiosurgery as a less invasive option for treating the tumor.
Radiosurgery → It is formed from "radio-" (from Latin "radius", meaning ray) and "surgery" (from Greek "cheirourgia", meaning hand work or manual operation). The term refers to a surgical procedure that uses radiation rays to treat conditions, particularly tumors.
Think of 'rays' ('radio-') being used in a 'manual operation' ('surgery') to treat medical conditions.
No commonly confused words.