One of the mysteries of the English language finally explained.
Surgical division or partial excision of a sympathetic ramus communicans, performed to produce sympathetic denervation; surgical sympathectomy; an instance of this.
1920s. Irregularly from ramus + -ectomy. In some forms probably after ramisection (although this is first attested slightly later).
In this article we explore how to impress employers with a spot-on CV.