Permian

US 
UK 
  • adj.【地】二叠纪的;二叠系的
  • n.二叠纪[系]
  • Web和二叠纪;二迭纪;古生代二叠纪
adj.
1.
【地】二叠纪的;二叠系的
n.
1.
二叠纪[系]

Sample Sentence

Definition:
Category:AllAll,OralOral,WrittenWritten,TitleTitle,TechnicalTechnical
Source:AllAll,DictionaryDictionary,WebWeb
Difficulty:AllAll,EasyEasy,MiddleMiddle,HardHard