English[edit]
Etymology[edit]
From crater reversed, signifying the formation of an elevated mound rather than the typical sunken crater.
Pronunciation[edit]
The retarc formed by the Whetstone Sulky nuclear test.
retarc (plural retarcs)
- (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.
