surgical operation vs major surgery

Other hyponyms of surgical operation include catheterisation, catheterization, ablation, cutting out, excision, extirpation, amputation, angioplasty, arthroplasty, arthroscopy, brain surgery, castration, cauterisation, cauterization, cautery, chemosurgery, craniotomy, cryosurgery, curettage, curettement, debridement, decortication, D and C, dilatation and curettage, dilation and curettage, electrosurgery, enterostomy, enterotomy, enucleation, wrong-site surgery, evisceration, exenteration, eye operation, eye surgery, fenestration, gastrectomy, gastroenterostomy, gastrostomy, heart surgery, haemorrhoidectomy, hemorrhoidectomy, hysterotomy, implantation, intestinal bypass, jejunostomy, microsurgery, minor surgery, myotomy, myringectomy, myringoplasty, myringotomy, neurosurgery, orchiopexy, osteotomy, ostomy, palatopharyngoplasty, PPP, UPPP, uvulopalatopharyngoplasty, phlebectomy, photocoagulation, anaplasty, plastic surgery, reconstructive surgery, polypectomy, resection, rhinotomy, rhizotomy, sex-change operation, transsexual surgery, purse-string operation, Shirodkar's operation, sterilisation, sterilization, strabotomy, taxis, tracheostomy, tracheotomy, organ transplant, transplant, transplantation, trephination, tympanoplasty, uranoplasty, vasovasostomy, vivisection.