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substratum
[ suhb-strey-tuhm, -strat-uhm, suhb-strey-tuhm, -strat-uhm ]
/ ˈsʌbˌstreɪ təm, -ˌstræt əm, sʌbˈstreɪ təm, -ˈstræt əm /
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noun, plural sub·stra·ta [suhb-strey-tuh, -strat-uh, -suhb-strey-tuh, -strat-uh], /ˈsʌbˌstreɪ tə, -ˌstræt ə, -sʌbˈstreɪ tə, -ˈstræt ə/, sub·stra·tums.
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Compare superstratum.
OTHER WORDS FROM substratum
sub·stra·tive, sub·stra·tal, adjectiveWords nearby substratum
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022
How to use substratum in a sentence
British Dictionary definitions for substratum
substratum
/ (sʌbˈstrɑːtəm, -ˈstreɪ-) /
noun plural -strata (-ˈstrɑːtə, -ˈstreɪtə)
Derived forms of substratum
substrative or substratal, adjectiveWord Origin for substratum
C17: from New Latin, from Latin substrātus strewn beneath, from substernere to spread under, from sub- + sternere to spread
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Scientific definitions for substratum
substratum
[ sŭb′strā′təm, -străt′əm ]
Plural substrata substratums
An underlying layer or stratum.
A surface on which an organism grows or is attached; a substrate.
The American Heritage® Science Dictionary
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