A soil containing enough calcium carbonate (commonly combined with magnesium carbonate) to effervesce visibly when treated with cold, dilute hydrochloric acid.

A soil containing calcium carbonate, or a soil alkaline in reaction because of the presence of calcium carbonate; a soil containing enough calcium carbonate to effervesce (fizz) when treated with dilute hydrochloric acid.

A soil which has calcium carbonate or an alkaline reaction due to the presence of calcium carbonate. A calcareous soil will fizz when treated with dilute hydrochloric acid.