FAQs About the word underclay

점토암

A stratum of clay lying beneath a coal bed, often containing the roots of coal plants, especially the Stigmaria.

No synonyms found.

No antonyms found.

underclassman => 하급생, underclass => 저급 계급, undercharge => 적게 청구하다, underchaps => 볼, underchanter => 안더찬터,