| Definition: A processual entity that is the fiat or bona fide process boundary. |
| Examples: birth, death, the forming of a synapse, the onset of REM sleep, the detaching of a finger in an industrial accident, the final separation of two cells at the end of cell-division, the incision at the beginning of a surgery |
| •owl:Thing |
| •entity |
| •occurrent |
| •processual_entity |
| •process_boundary |