What is the "Parmedian world"?

So, I’ve come across this sentence in my textbook that Google will just not decipher for me. It keeps coming up with a few blogs mentioning “Parmedian”, but otherwise wants to correct the spelling to “Paramedian”, and since I don’t know the word at all, I can’t tell if this is a typo in the book.

So, Fluther, help me out. The original sentence is ”[The third-wave feminist] world is the Heraclitean world, not the Parmedian world”. What is Parmedian? I’m guessing it’s named after some Greek philosopher, but what the exact original name is, and what he stood for, not a clue.