Top Definition
The evolution of heavy metal. The genre of heavy metal that is the most popular for that given time period.
Heavy metal started with bands like Black Sabbath, Led Zeppelin, ETC. Then metalution occorred to make a more glam period with bands like Motley Crue, and Whitesnake, that went through another metalution making bands like Metallica and Pantera popular. (it keeps going on)
by moses x September 12, 2006

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