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substratum

substratum

8.6
A surface on which a plant, fungus, or small animal grows
  • noun
  • /sʌbˈstrætəm/
  • Specialized
translation icon : sustrato
  • Many lichens produce a simple crustose thallus intimately attached to the substratum, as do certain species of red and brown marine algae (Figure 5).

And, and there are and they just showed recently that actually the substrata miles down in the earth is filled with life.

Examples

  • All species require a firm (rocky) substratum free of sediment, and most thrive in areas swept by moderate to strong currents.

    Academic text (1993)
  • The recovery of a coral reef overgrown by algae is contingent on CCA growth, which stabilizes the substratum.

    Academic text (2004)
  • And, and there are and they just showed recently that actually the substrata miles down in the earth is filled with life.

  • The decreasing critical shear stress from the upper to the lower watershed reflects a parallel decrease in the typical substratum particle size.

    Academic text (2006)
  • The rock lobsters escaped temporarily by swimming, but each contact with the substratum resulted in several more whelks attaching themselves until the weight of numbers prevented escape.

    Academic text (1995)
  • Diffuse or nonapical growth of the thallus can also occur and might be common in fruticose lichens, in which attachment to the substratum is limited to the base, leaving the rest of the thallus free.

    Academic text (2001)
  • Others have foliose, dorsiventral forms, with a discrete lower surface attached to the substratum at specific points, reminiscent of a plant leaf or a thallose bryophyte (Figure 6).

    Academic text (2001)
  • From ejaculation to counter-ejaculation, Weston affirms and negates and then affirms and negates again the carnal substratum of his artistry with the camera.

    Academic text (2002)
  • Coral reefs need a stable substratum to grow and thrive in their marine environment.

  • The roots of the tree reached deep into the substratum, securing it against strong winds.

Synonyms

substrate
vssubstratum
  • Specialized
3 7.3

A surface or material where living things attach and grow

is a layer or underlying surface used especially in biological contexts

How Supportive

agar
  • Specialized
3 6.8
soil
325 1.0
substratum
  • Specialized
8.6
bark
66 1.0
rock
1.0

Surface Forms

substratum singular
substrata plural

Morphology

substratum = stratum (transparent) = sub + stratum

In biology the idea of an underlying layer or surface is a direct extension of 'sub-' + 'stratum'.

Etymology

Substratum comes from Latin parts sub- 'under' and stratum 'layer', so in biology it names the surface or layer that a plant or animal grows on. Think of a rock or soil as the 'under layer' where a lichen or root attaches, which is why biologists call that surface a substratum.