Just to note, be careful backuping this new dictionary file if you intend to use that new wallet and seed. If in future you'd need to reinstall or upgrade Electrum, and recreate the wallet (with your seed), then you'd need also the same file to generate your wallet addresses and keys. So you'd be dependant not only of your seed, but also of this file.
That's not correct. Electrum doesn't depend on any dictionary. You can restore without having the dictionary on hand.
For example:
sensuous 4478 plentiful scribble schematic 6525 sloppy pesky 7002 bobble
Try restoring using the above seed.
Very interesting! I didn't know that. So it means the dictionary used to create a seed can be used only temporarily? Then, with that seed generated, I can safely restore the wallet in another PC with the default electrum installation?