| 单词 | superstratum | 
| 释义 | Word Frequency superstratum(ˌsuːpəˈstrɑːtəm, -ˈstreɪ-) nounWord forms:  plural -ta (-tə) or -tums 1.  geology a layer or stratum overlying another layer or similar structure 2.  linguistics the language of a conquering or colonizing population as it supplants that of an indigenous population, as for example French and English in the Caribbean    Compare substratum (sense 8)  | 
	
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