Ablation Definition

ă-blāshən
noun
Surgical excision or amputation of a body part or tissue.
American Heritage Medicine
The erosive processes by which a glacier is reduced.
American Heritage
The dissipation of heat generated by atmospheric friction, especially in the atmospheric reentry of a spacecraft or missile, by means of a melting heat shield.
American Heritage
The reduction or removal of heat-protective surface material by aerodynamic friction, as from a heat shield.
American Heritage
The process by which snow and ice are removed from a glacier or other mass of ice. Ablation typically occurs through melting, sublimation, wind erosion, or calving. &diamf3; The ablation zone is the area of a glacier that has the lowest elevation, where annual water loss is greater than the annual accumulation of snow.
American Heritage Science
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Other Word Forms of Ablation

Noun

Singular:
ablation
Plural:
ablations

Origin of Ablation

  • Late Latin ablātiō ablātiōn- from Latin ablātus past participle of auferre to carry away ab- away ab–1 lātus carried telə- in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Middle French and Latin ablātiō (“a taking away"), from ablātus (“removed"), the perfect passive participle of auferō (“carry away"). Compare French ablation.

    From Wiktionary

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