单词：pms 

名词

• 
  [1.n.pms] (同义词:[premenstrual_syndrome]  [PMS(abbr.Pre-Menstrual Syndrome, 月经前不快症状 )]  )
• 
  注释列句：a syndrome that occurs in many women from 2 to 14 days before the onset of menstruation
• 上位词 -> [syndrome( n. 综合病症 )]  [symptom( n. [医][植]症状, 征兆 )]  [evidence( n. 明显, 显著, 明白, 迹象, 根据, [物]证据, 证物 )]  [information( n. 通知, 报告, 消息, 情报, 知识, 见闻, 资料, 起诉 信息 )]  [cognition( n. 认识 )]  [psychological_feature(心理特征 )]  [abstraction( n. 提取 )]  [entity( n. 实体 )]