outer boundary

Related
  • perimeterShape's outer edge length
  • edgeBoundary or sharpness
  • rimCircular outer boundary
  • borderOuter edge or limit
  • fringeOutermost edge or margin

margin · periphery · skin · shell · crust · fence · wall · barrier · limit · threshold · horizon · outline · contour · circumference · envelope · membrane · husk · brink

Categories
Opposites
spatial position

outer boundaryinner core

Centermost solid sphere

center · nucleus · core · inner edge · heart

containment hierarchy

outer boundaryinterior wall

Indoor room-dividing surface

inner ring

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