[{"Bold_text": "noun", "List Items": ["the removal, especially of organs, abnormal growths, or harmful substances, from the body by mechanical means, as by surgery.", "the reduction in volume of glacial ice, snow, or névé by the combined processes of melting, evaporation, and calving.Compare alimentation(def3) alimentation(def3).", "Aerospace.erosion of the protective outer surfaceablatorof a spacecraft or missile due to the aerodynamic heating caused by travel at hypersonic speed during reentry through the atmosphere."]}]