单词 | substratum |
释义 | Word Frequency substratum(sʌbˈstrɑːtəm, -ˈstreɪ-) nounWord forms: plural -strata (-ˈstrɑːtə, -ˈstreɪtə) 1. any layer or stratum lying underneath another 2. a basis or foundation; groundwork 3. the nonliving material on which an animal or plant grows or lives 4. geology a. the solid rock underlying soils, gravels, etc; bedrock b. the surface to which a fixed organism is attached 5. sociology any of several subdivisions or grades within a stratum 6. photography a binding layer by which an emulsion is made to adhere to a glass or film base Sometimes shortened to: sub7. philosophy substance considered as that in which attributes and accidents inhere 8. linguistics the language of an indigenous population when replaced by the language of a conquering or colonizing population, esp as it influences the form of the dominant language or of any mixed languages arising from their contact Compare superstratum (sense 2)Derived forms substrative (subˈstrative) or substratal (subˈstratal) adjective Word origin C17: from New Latin, from Latin substrātus strewn beneath, from substernere to spread under, from sub- + sternere to spread |
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