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)
superstratum in American English
(ˈsupərˌstreɪtɛm; ˈsupərˌstrætəm)
nounWord forms: pluralˈsuperˌstrata (ˈsupərˌstreɪtə; ˈsupərˌstrætə) or ˈsuperˌstratums