单词：sn 

名词

• 
  [1.n.sn] (同义词:[tin( n. [化]锡, 马口铁, 罐 vt. 涂锡于 adj. 锡制的 )]  [Sn([域] Senegal , 塞内加尔 )]  [atomic_number_50]  )
• 
  注释列句：a silvery malleable metallic element that resists corrosion; used in many alloys and to coat other metals to prevent corrosion; obtained chiefly from cassiterite where it occurs as tin oxide
• 上位词 -> [metallic_element]  [chemical_element]  [substance( n. 物质, 实质, 主旨 )]  [matter( n. 事件, 问题, 物质, 内容, 实质, 原因, (印刷或书写的)文件, (文章或讲话等的)素材 vi. 有关系, 要紧 )]  [physical_entity]  [entity( n. 实体 )] 
• 基本总称 -> [cassiterite( n. [矿]锡石 )]  [tinfoil(n.锡纸 adj. 锡箔的 )] 
  所有总称 -> [cassiterite( n. [矿]锡石 )]  [tinfoil(n.锡纸 adj. 锡箔的 )]