RO:0002220

x adjacent_to y iff: x and y share a boundary.,x adjacent to y if and only if x and y share a boundary.

This relation acts as a join point with BSPO

A caterpillar walking on the surface of a leaf is adjacent_to the leaf, if one of the caterpillar appendages is touching the leaf. In contrast, a butterfly flying close to a flower is not considered adjacent, unless there are any touching parts.,The skin of the forelimb is adjacent to the skin of the torso if these are considered anatomical subdivisions with a defined border. Otherwise a relation such as continuous_with would be used.,The plasma membrane of a cell is adjacent to the cytoplasm, and also to the cell lumen which the cytoplasm occupies.,The epidermis layer of a vertebrate is adjacent to the dermis.

http://purl.obolibrary.org/obo/IAO_0000125

external,uberon

adjacent_to

http://purl.obolibrary.org/obo/uberon.owl,http://purl.obolibrary.org/obo/cl.owl

adjacent_to

http://purl.obolibrary.org/obo/RO_0001901

Chris Mungall