permanent extinction

permanent extinction

[′pər·mə·nənt ik′stiŋk·shən]
(geology)
The extinction of a lake by destruction of the lake basin, because of such processes as deposition of sediments, erosion of the basin rim, filling with vegetation, or catastrophic events.
References in periodicals archive ?
Any interruption of supplies by Gazprom Export, even for a short period, would lead in all likelihood to the permanent extinction of Overgas as the only remaining competitor in Bulgaria," he is quoted as writing in the letter.
Here, again, is the view at issue: when we die, what's next is nothing; death is an abyss, a black hole, the end of experience; it is eternal nothingness, the permanent extinction of being.
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