Marl and Terra firma

Marl noun - A loose and crumbling earthy deposit consisting mainly of calcite or dolomite; used as a fertilizer for soils deficient in lime.

Terra firma and marl are semantically related. in ground topic. In some cases you can use "Terra firma" instead a noun "Marl".

Nearby Words: marled, marly, marling

Terra firma noun - The solid part of our planet's surface as distinguished from the sea and air.

Marl and terra firma are semantically related. Sometimes you can use "Marl" instead a noun phrase "Terra firma".