| 单词 | Davian | 
| 释义 | Davian [`dä·vē·ǝn]  GEOLOGY A subdivision of the Upper Cretaceous in Europe; a limestone formation with abundant hydrocorals, bryozoans, and mollusks in Denmark; marine limestone and nonmarine rocks in southeastern France; and continental formations in the Davian of Spain and Portugal.  | 
	
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