FAQs About the word underclay

Tonstein

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 => Schüler aus unteren Klassen, underclass => Unterschicht, undercharge => unterberechnen, underchaps => Wangen, underchanter => Bordun,