transitionnoun
She had a sex change two years ago.
He decided that a sex change was the only way for him to achieve happiness.
He fought a lengthy battle for legal recognition of his sex change.

SMART Vocabulary: related words and phrases

Medical treatment: surgery
ablate
ablation
adenoidectomy
adrenalectomy
allograft
amputation
anaesthesia
blood transfusion
endarterectomy
endonasal
enterostomy
enucleate
enucleated
general anaesthetic
prostatectomy
pump something out
reduction mammaplasty
regraft
reimplant
suture