SUBSTRATUM


Meaning of SUBSTRATUM in English

sub ‧ stra ‧ tum /ˌsʌbˈstrɑːtəm $ -ˈstreɪ-/ BrE AmE noun ( plural substrata /-tə/) [countable]

technical a layer that lies beneath another layer, especially in the earth:

a substratum of rock

a social substratum

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.