A chemical process where carbon dioxide is absorbed into a substance, most commonly seen in soil or water chemistry.
From carbonate (a salt formed when CO2 reacts with a base) plus -ation (suffix for processes). Variant spelling of carbonation, emphasizing the -ate root.
Carbonatation is why limestone caves form and why ocean acidification is such a problem—in both cases, CO2 dissolving into water fundamentally transforms rock and shell chemistry at a molecular level.
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