English

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Etymology

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From crater reversed, signifying the formation of an elevated mound rather than the typical sunken crater.

Pronunciation

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The retarc formed by the Whetstone Sulky nuclear test.

Noun

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retarc (plural retarcs)

  1. (geology, nuclear testing) A rubble mound occasionally formed by a powerful underground explosion (usually nuclear) in solid rock, due to the chimney of shattered rock above the explosion occupying a greater volume than the solid rock previously present.