also calcarious, 1670s, from Latin calcarius "of lime," from calx (genitive calcis) "lime, limestone" (see chalk (n.)).

Containing the compound calcium carbonate (CaCO3). Calcite and Aragonite are calcareous minerals.

chalky, or containing or resembling calcium carbonate.

adj. Term used to describe a structure, secreted by an organism, that consists of or contains calcium carbonate (CaCO3), e.g., the shell of a bivalve.

A soil containing relatively high amounts of calcium carbonate, usually alkaline.

Soils containing calcium.

Mostly or partly composed of calcium carbonate, a chalk like substance.

Calcium-bearing rock.

Of, containing, or like calcite (calcium carbonate).

Of, containing, or like calcite

comprising or containing significant amounts of calcium carbonate

(adj) composed of or containing or resembling calcium carbonate or calcite or chalk

containing calcium carbonate, as in soils and other substrates which contain high concentrations of calcium carbonate.

Made of calcium carbonate

A descriptive term used for rocks and other earth materials that have an abundance of calcium carbonate (CaCO3

Formed of, or containing, carbonate of lime or limestone.

Generally alkaline soils.

Calcareous (calcium) structures are shells, bones and exoskeletons that are created by many animals to provide both support and protection. Camouflage Colours or patterns are often displayed on an an [..]

Alkaline soils and rocks, e.g. chalk, limestone.

containing or primarily made of the mineral calcite (calcium carbonate, CaCO3).

Containing the compound calcium carbonate.

Containing appreciable amounts of calcite [calcium carbonate, CaCO3].

Containing or composed of calcium or one of its compounds.

Containing salts of calcium, for example, calcium carbonate as limestone rock or derived soil.

Descriptive of materials containing calcium carbonate.  Channel:

A material or substance that contains or resembles calcium carbonate.