Dictionary

substratum

noun sub·stra·tum \ˈsəb-ˌstrā-təm, -ˌstra-, ˌsəb-ˈ\

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

plural sub·stra·ta\-tə\

Full Definition of SUBSTRATUM

:  an underlying support :  foundation: 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
d :  substrate 2

Examples of SUBSTRATUM

  1. drilled into the bedrock substratum

Origin 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

Rhymes with SUBSTRATUM

Medical Dictionary

substratum

noun sub·stra·tum \ˈsəb-ˌstrāt-əm, -ˌstrat-, ˈsəb-ˈ\
plural sub·stra·ta \-ə\

Medical Definition of SUBSTRATUM

1
:  the material of which something is made and from which it derives its special qualities
2
:  substrate 2

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