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Definition of Calcareous
1. Adjective. Composed of or containing or resembling calcium carbonate or calcite or chalk.
Definition of Calcareous
1. a. Partaking of the nature of calcite or calcium carbonate; consisting of, or containing, calcium carbonate or carbonate of lime.
Definition of Calcareous
1. [adj]
Medical Definition of Calcareous
1. Chalky; relating to or containing lime or calcium, or calcific material. Origin: L. Calcarius, pertaining to lime, fr. Calx, lime (05 Mar 2000)