Partaking of the nature of calcite or calcium carbonate composed of or containing calcium carbonate or carbonate of lime
- consists of or containing or resembling calcium carbonate or calcite or chalk
- Partaking associated with the nature of calcite or calcium carbonate; composed of, or containing, calcium carbonate or carbonate of lime.
also calcarious, 1670s, from Latin calcarius "of lime," from calx (genitive calcis) "lime, limestone" (see chalk (n.)).
On the bank of the Tiretaine there is a remarkable calcareous spring, the fountain of St Allyre, the copious deposits of which have formed a curious natural bridge over the stream.