单词：pkd 

名词

• 
  [1.n.pkd] (同义词:[polycystic_kidney_disease]  [PKD]  )
• 
  注释列句：kidney disease characterized by enlarged kidneys containing many cysts; often leads to kidney failure
• 上位词 -> [kidney_disease]  [uropathy( 尿道疾病  尿路病 )]  [pathology( n. 病理学 )]  [ill_health(n.不健康 )]  [pathological_state]  [physical_condition(物理［物质］状态 )]  [condition( n. 条件, 情形, 环境, 社会地位 vt. 以...为条件, 使达到要求的情况 )]  [state( n. 情形, 状态, 国家, 政府, 州 adj. 国家的, 国有的, 国营的, 州的, 正式的, 典礼用的 vt. 声明, 陈述, 规定 )]  [attribute( n. 属性, 品质, 特征, 加于, 归结于 )]  [abstraction( n. 提取 )]  [entity( n. 实体 )]