Thesaurus: underclay
A stratum of clay lying beneath a coal bed, often containing the roots of coal plants, especially the Stigmaria.
Related headwords
coaldefinitionbeneathdefinitionclaydefinitionlyingdefinitionplantsdefinitionrootsdefinitionstigmariadefinitionstratumdefinitioncontainingdefinitionunder armsfamilyunder attackfamilyunder firefamilyunder wayfamilyunder wrapsfamilyunder-achievedfamilyunder-achieversfamilyunder-achievingfamilyunder-agefamilyunder-armfamilyunder-bailiffsfamilyunder-belliesfamilyunder-blanketsfamilyunder-butlersfamilyunder-carriagesfamilyunder-classesfamilyunder-countedfamily
Definitions
- n. A stratum of clay lying beneath a coal bed, often containing the roots of coal plants, especially the Stigmaria.
- A stratum of clay lying beneath a coal bed, often containing the roots of coal plants, especially the Stigmaria.
- A stratum of clay lying beneath a coal bed, often containingthe roots of coal plants, especially the Stigmaria.
- n. A stratum of clay lying beneath a coal bed, often containing the roots of coal plants, especially the Stigmaria.