Top Definition
City on Cybertron, a major Decepticon centre and possibly Decepticon headquarters. Site of the largest/only smelting pit. Ruled by Lord Straxus and later by the Triumvirate.

Featured in the TransFormers comic.
Blaster and his team plan to break into Polyhex and release the captives.
by Andy April 19, 2004
2 Words related to Polyhex

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