an agent or instrument used to destroy abnormal tissue by burning searing or scarring including caustic substances electric currents lasers and very hot or very cold instruments
一种通过燃烧、灼烧或留下疤痕来破坏异常组织的药剂或仪器，包括腐蚀性物质、电流、激光和非常热或非常冷的仪器
以上为机器翻译结果，长、整句建议使用 人工翻译 。