Property information

IAO 0000118

is boundary of

boundary of


is 2D boundary of

surface of

RO 0001900


a relation between a 2D immaterial entity (the boundary) and a material entity, in which the boundary delimits the material entity

editor note

A 2D boundary may have holes and gaps, but it must be a single connected entity, not an aggregate of several disconnected parts.

Although the boundary is two-dimensional, it exists in three-dimensional space and thus has a 3D shape.

example of usage

the surface of my skin is a 2D boundary of my body



Property relations