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| ab·la·tion [ ə bláysh'n ] |
noun |
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1. medicine removal of tissue: the removal of diseased or unwanted tissue from the body by surgical or other means
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2. aerospace melting of spacecraft's outer surface: the melting or erosion of the protective outer surface of a spacecraft during reentry through the Earth's atmosphere
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3. geology melting of snow and ice: the removal of snow and ice by melting and sublimation from a glacier or iceberg
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