GNU Collaborative International Dictionary of English

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Found one definition

1.       
   Ablation , n. [L. ablatio, fr. ablatus p. p. of auferre to carry away; ab + latus, p. p. of ferre carry: cf. F. ablation. See Tolerate.]
   A carrying or taking away; removal.
   Jer. Taylor.
   
   1913 Webster
   (Med.) Extirpation.
   Dunglison.
   AS
   1913 Webster
   (Med.) Removing or destroying of a body tissue, especially by a surgical procedure. Dorland.
   AS
   (Geol.) Wearing away; superficial waste, as of glacial ice or snow.
   Tyndall.
   
   1913 Webster
   (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.
   PJC