sublayer

Beneath the surface

A sublayer is a layer within or beneath another layer—a division of a larger stratum into finer components.

The term appears in networking, where protocol layers divide into sublayers, and in geology and materials science, where distinct zones exist within broader strata.

The MAC sublayer handles network addressing.

construction

underlayment

Base layer beneath flooring

membrane · insulation · vapor barrier · plywood · padding · cushioning · backing · lining · undercoat · primer

coating

undercoat

Preparatory paint layer

  • primerPreparatory coat or guide
  • basecoatFoundational paint layer
  • sealerCoating preventing moisture penetration

ground · gesso · sizing · wash · rust inhibitor · bonding agent

geology

stratum

Horizontal layer of material

lithosphere · asthenosphere · substratum · deposit · formation · shale · sandstone · limestone · water table · permafrost

concealed

encrypted

Transformed into cipher

underlying · buried · invisible · latent · nested · obscured

digital

transparency

State of being see-through

flatten · compositing · alpha channel · visibility

Opposites
vertical position in layered structure

sublayersurface layer

Outermost portion of something

top layer · superlayer · overlayer · outer layer · surface

hierarchical status

sublayerbase layer

Innermost worn garment

Family

sublayers

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