substratum

noun
sub·​stra·​tum | \ ˈsəb-ˌstrā-təm How to pronounce substratum (audio) , -ˌstra-; ˌsəb-ˈstrā-, -ˈstra-\
plural substrata\ ˈsəb-​ˌstrā-​tə How to pronounce substrata (audio) , -​ˌstra-​ ; ˌsəb-​ˈstrā-​ , -​ˈstra-​ \

Definition of substratum

: an underlying support : foundation: such as
a : substance that is a permanent subject of qualities or phenomena
b : the material of which something is made and from which it derives its special qualities
c : a layer beneath the surface soil specifically : subsoil
e 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

Keep scrolling for more

Other Words from substratum

substratal \ ˈsəb-​ˌstrā-​tᵊl How to pronounce substratal (audio) , -​ˌstra-​ ; ˌsəb-​ˈstrā-​ , -​ˈstra-​ \ adjective

Examples of substratum in a Sentence

drilled into the bedrock substratum

Recent Examples on the Web

Sessions is speaking to a real perception of a significant substratum of the American citizenry. Christopher Shea, Vox, "Why Jeff Sessions thinks Christians are under siege in America," 1 Aug. 2018 Severance occurs when the tail tip adheres to the substratum and the rest of the planarian pulls away. Chris Ciaccia, Fox News, "Massive 18-inch hammerhead worms are invading France," 23 May 2018 Even here, though, abyssal tuba notes exposed a sonic substratum. Alex Ross, The New Yorker, "The L.A. Philharmonic Celebrates Iceland," 21 Apr. 2017

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.

See More

First Known Use of substratum

1631, in the meaning defined above

History and Etymology for substratum

Medieval Latin, from Latin, neuter of substratus, past participle of substernere to spread under, from sub- + sternere to spread — more at strew

Keep scrolling for more

Learn More about substratum

Statistics for substratum

Look-up Popularity

Time Traveler for substratum

The first known use of substratum was in 1631

See more words from the same year

Keep scrolling for more

More Definitions for substratum

substratum

noun

English Language Learners Definition of substratum

: a layer of something (such as soil or rock) that is under another layer

substratum

noun
sub·​stra·​tum | \ ˈsəb-ˌstrāt-əm, -ˌstrat-, ˈsəb-ˈ How to pronounce substratum (audio) \
plural substrata\ -​ə How to pronounce substrata (audio) \

Medical Definition of substratum

1 : the material of which something is made and from which it derives its special qualities

More from Merriam-Webster on substratum

Rhyming Dictionary: Words that rhyme with substratum

Comments on substratum

What made you want to look up substratum? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

incapable of being surmounted or overcome

Get Word of the Day daily email!

Test Your Vocabulary

Finance Words Quiz

  • a-piggy-bank
  • The etymology of mortgage is related most closely to which two words?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!