has part
has component
For use in recording has_part with a cardinality constraint, because OWL does not permit cardinality constraints to be used in combination with transitive object properties. In situations where you would want to say something like 'has part exactly 5 digit, you would instead use has_component exactly 5 digit.
external
RO:0002180
The definition of 'has component' is still under discussion. The challenge is in providing a definition that does not imply transitivity.
has_component
uberon
has_component
w 'has component' p if w 'has part' p and w is such that it can be directly disassembled into into n parts p, p2, p3, ..., pn, where these parts are of similar type.
pending final vetting