Board Thread:The Panopticon/@comment-4139960-20131112180414/@comment-188432-20131119045838

The best term of the ones we already have is clearly dimensional transporter. That's a literal description derived from the scripts. Mickey, while explaining what the thing does, says:
 * "I could transport out of here, but it only carries one and I'm not leaving you."

So it transports between dimensions. Medallion is far too generic a term.

Another viable term, and one I actually like a bit better is dimension hopper or maybe world hopper. This is derived from the Doctor's own speech to Jake:


 * Doctor: "You can't just ... hop from one world to another. You can't."
 * Jake: We just did. With these.