(idiomatic, archaic) A most worthy person. / (idiomatic) A decent, dependable, unpretentious person.

A red soil found in tropical areas, containing oxidized iron.

The United Nations Conference on Environment and Development held in Rio de Janeiro in 1992.

(chemistry) Any of the naturally occurring oxides of the lanthanide metals; they are widely distributed in relatively small concentrations and are used in glassmaking, ceramic glazes etc.

(idiomatic) Practical; realistic; pragmatic. / (idiomatic) Ordinary; normal; run-of-the-mill.

A fine clay used in fulling cloth.

An outhouse or lavatory which uses a cesspit rather than a flush toilet and plumbing.

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).

(fox hunting) A fox's primary lair.