Ablation
Ablation ({not transcribed}) , noun
[Latin ablatio, from ablatus past participle of auferre to carry away; ab + latus, past participle of ferre carry: compare French ablation. See Tolerate.]
1.
A carrying or taking away; removal. — Jer. Taylor
2.
(Medicine) Extirpation. — Dunglison
3.
(Medicine) Removing or destroying of a body tissue, especially by a surgical procedure. — Dorland
4.
(Geology) Wearing away; superficial waste, as of glacial ice or snow. — Tyndall
5.
(Aerospace) Wearing away of the outer layers of a protective shield or surface by the heat and aerodynamic forces caused by flying through the atmosphere at hypersonic speed, as during reentry from space; as, ablation of the heat shield during reentry.