ABLATION
ablation, extirpation, cutting out, excision
(noun) surgical removal of a body part or tissue
ablation
(noun) the erosive process that reduces the size of glaciers
Source: WordNet® 3.1
Etymology
Noun
ablation (countable and uncountable, plural ablations)
(obsolete) A carrying or taking away; removal. [First attested around 1350 to 1470.]
(medicine) The surgical removal of a body part, an organ, or especially a tumor; the removal of an organ function; amputation. [First attested around 1350 to 1470.]
(sciences) The progressive removal of material by any of a variety of processes such as vaporization under heat or chipping. [Mid 20th century.]
(geology) The removal of a glacier by melting and evaporation; the lowering of a land surface by any of several means, as in wind erosion, mass wasting. [Mid 20th century.]
(meteorology) The depletion of surface snow and ice by melting and evaporation.
Source: Wiktionary
Ab*la"tion, n. Etym: [L. ablatio, fr. ablatus p. p. of auferre to
carry away; ab + latus, p. p. of ferre carry: cf. F. ablation. See
Tolerate.]
1. A carrying or taking away; removal. Jer. Taylor.
2. (Med.)
Definition: Extirpation. Dunglison.
3. (Geol.)
Definition: Wearing away; superficial waste. Tyndall.
Source: Webster’s Unabridged Dictionary 1913 Edition