substratum(redirected from Sub-stratum)
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Any layer or stratum lying beneath another.
[L. see substrate]
Farlex Partner Medical Dictionary © Farlex 2012
n. pl. sub·strata (-strā′tə, -străt′ə) or sub·stratums
Biology A substrate.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
substrate, substratum (sub'strat) (sub-stra'tum) [L. substratum, to lie under]
1. An underlying layer or foundation.
2. A base, as of a pigment.
3. The substance acted upon, as by an enzyme. See: enzyme
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