substratum

play
noun sub·stra·tum \ˈsəb-ˌstrā-təm, -ˌstra-; ˌsəb-ˈstrā-, -ˈstra-\

Definition of substratum

plural

substrata

play \ˈsəb-ˌstrā-tə, -ˌstra-; ˌsəb-ˈstrā-, -ˈstra-\
  1. :  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

substratal

play \ˈsəb-ˌstrā-təl, -ˌstra-; ˌsəb-ˈstrā-, -ˈstra-\ adjective

Examples of substratum in a Sentence

  1. drilled into the bedrock substratum

Origin and Etymology of substratum

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


First Known Use: 1631


SUBSTRATUM Defined for English Language Learners

substratum

play
noun

Definition of substratum for English Language Learners

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


Medical Dictionary

substratum

play
noun sub·stra·tum \ˈsəb-ˌstrāt-əm, -ˌstrat-, ˈsəb-ˈ\

Medical Definition of substratum

plural

substrata

\-ə\play
  1. 1:  the material of which something is made and from which it derives its special qualities

  2. 2:  substrate 2

Learn More about substratum


Seen and Heard

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

Love words? Need even more definitions?

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

WORD OF THE DAY

a lively discussion

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

  • istock-refers-to-this-as-a-tumble-of-strawberries-which-sounded-pretty-nice-to-us
  • Which is a synonym of garner?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

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!