Ablate: To remove. A tumor may be ablated. To ablate the thyroid gland is to remove it. The word "ablation" came from the Latin "ablatum" meaning to carry away.
In 1671 the ablation (removal) of a disease was a matter for consideration. But by 1846 "ablation" had taken on a specifically surgical edge and today it applies principally to the surgical removal of any part of the body.