retarc

发音

/ˈɹiːtɑː(ɹ)k/

词形变化

retarcs 复数 retarcs

释义与例句

n.
  1. 1.

    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.

    地质

词源

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

来源：wiktionary