This version of OLS (OLS3) is no longer updated and will be replaced by OLS4 on 30th October 2023.

Help us test the new version of OLS, with updated versions of ontologies and lots of new features!

Property information

alternative term


has boundary


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

editor note

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

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

example of usage

my body has 2D boundary the surface of my skin

temporal interpretation

term editor

David Osumi-Sutherland

Property relations