What is an appropriate antonym for "genesis"?

In my academic discipline (meteorology), I very occasionally see lysis used to refer to dissipation of a system where genesis has been used to describe its initial development.

However, lysis seems to really only have biological connotations, so is this usage correct? If not, what would an appropriate antonym for genesis be?

Dissipation is the first possibility to mind, especially if you are talking about very IMMORAL weather. Probably caused by climate-change. =] http://en.wikipedia.org/wiki/Dissipation

Resolution.

Late PS: Perhaps because I'm a bit highbrow (note elevated snoot!) I tend to hate highbrow terms. Familiarity breeds contempt. So how about a good knuckle-dragging Neanderthal term instead? Like, um... fizzle.. Hurricane Gonzalo will fizzle somewhere between Bermuda and Newfoundland... fo'shizzle it'll fizzle (whoa! poetic!)

I think the antonym of "genesis" is "terminus." The general meaning of genesis (outside any particular contextual application) is "beginning." So the antonym should be a word that generally means "ending."

"Dissipation," "collapse," "completion," and "lysis" all are words that denote specific kinds of endings, and are only antonymic in particular contexts. Nonetheless, "dissipation" might be the best word for your usage case.

It seems to me that when "genesis" is used to describe the earth's creation, that its antonym isn't about the earth's death. It's about its "reconfiguration" or "recycling" in the cosmos.