the operation of excising or removing one or both tonsils
Word origin
[1900–05; ‹ L tōnsill(ae) tonsils + -ectomy]This word is first recorded in the period 1900–05. Other words that entered Englishat around the same time include: clone, desensitize, hookup, hormone, throwaway-ectomy is a combining form meaning “excision” of the part specified by the initial element,used in the formation of compound words. Other words that use the affix -ectomy include: atherectomy, endarterectomy, laminectomy, sclerectomy, vasectomy
Examples of 'tonsillectomy' in a sentence
tonsillectomy
But there are some short-term benefits to having a tonsillectomy.
Times, Sunday Times (2006)
She is waiting for a tonsillectomy at a different hospital.