Substratum Definition

sŭbstrātəm, -strătəm
substrata
noun
substrata
An underlying layer.
American Heritage
A layer of earth beneath the surface soil; subsoil.
American Heritage
Any basis or foundation.
Webster's New World
A part, substance, element, etc. which lies beneath and supports another; foundation.
Webster's New World
Webster's New World

Other Word Forms of Substratum

Noun

Singular:
substratum
Plural:
substrata

Origin of Substratum

  • New Latin substrātum from neuter of Latin substrātus past participle of substernere to lay under sub- sub- sternere to stretch, spread ster-2 in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

  • sub- +"Ž stratum, both elements from Latin.

    From Wiktionary

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substratum