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Meaning of retarc | Babel Free

Noun CEFR B1
ˈɹiːtɑː(ɹ)k

Definitions

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.

CEFR level

B1
Intermediate
This word is part of the CEFR B1 vocabulary — intermediate level.
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See also

retard retard strength retardance retardancy Retardant Retardants

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