Top definition
The human activity of destroying or causing irreparable damage to entire natural ecosystems over extremely large areas, typically in the interests of economic gain, or occassionally, for military purposes.
Justin: "Whoa! Did you see where Canada is committing total ENVIROCIDE all around Alberta's Athabasca Oilsands?"

Brittany: "Yeah, like, you can see the effects from space, like, on Google Earth. The area's the size of, like, all of Florida!"
by Peter Ralphs February 16, 2008
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