intagliated particle: An intagliated particle is a subatomic particle which contains more metadata than the universe-defined natural parameter set (position, momentum, mass, charge, spin, color, etc.). Such metadata can be strictly passive; can interact with other entities via the mechanisms of natural or artificial laws; or can be internally active. While simple intagliation can be carried out using a peeker-poker or particle graver, this last state is typically achieved by “infecting” the particle with a species of active femtotechnology.

For example, muon stabilization is achieved by a primitive femtomachine which attaches itself to the muon. In the most simplistic and metaphorical terms imaginable – and my editor has assured me, gentle reader, that he stands ready to intercept the letters from outraged physicists that will no doubt ensue – this femtomachine executes a script which is triggered when the muon enters a pre-decay state, and “reboots” the muon back to its initial parameters.

– sidebar, A Young Engineer’s First Book of Ontophysics