chernozem

Soil that is high in organic matter, including charcoal, indicating settlement and urbanization of an area when present as a horizon (i.e., a layer).

A kind of clay from Samos, formerly used in medicine as an astringent.

Alternative spelling of Middle Earth / (fiction) Alternative letter-case form of Middle-earth

(fox hunting) A fox's primary lair.

(obsolete) Common red clay.

mineral tar, a kind of asphalt

petroleum

The earthy residuum after the calcination of bone, consisting chiefly of calcium phosphate.

manroot (Ipomoea leptophylla)