participates in participates in participates_in participates_in a relation between a continuant and a process, in which the continuant is somehow involved in the process external Participates in is a primitive instance-level relation between a continuant and a process in which it participates. For example a scanner participates in a scanning process at some specific time. a relation between a continuant and a process, in which the continuant is somehow involved in the process participates in participates_in participates_in this input material (or this output material) participates in this process this investigator participates in this investigation uberon RO:0000056 this blood clot participates in this blood coagulation has_participant has participant has participant continuant continuant occurrent occurrent