Definition of substratum
substrataplay \ˈsəb-ˌstrā-tə, -ˌstra-; ˌsəb-ˈstrā-, -ˈstra-\
: an underlying support : foundation: such asa : substance that is a permanent subject of qualities or phenomenab : the material of which something is made and from which it derives its special qualitiesc : a layer beneath the surface soil; specifically : subsoild : substrate 2e linguistics : a component of a language (such as a part of its phonology, syntax, or lexicon) that remains from absorption of a pre-existing language in the region where the language is currently spoken
substratalplay \ˈsəb-ˌstrā-təl, -ˌstra-; ˌsəb-ˈstrā-, -ˈstra-\ adjective
Examples of substratum in a Sentence
drilled into the bedrock substratum
Recent Examples of substratum from the Web
Even here, though, abyssal tuba notes exposed a sonic substratum.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'substratum.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
SUBSTRATUM Defined for English Language Learners
Definition of substratum for English Language Learners
: a layer of something (such as soil or rock) that is under another layer
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