Producing or generating calcium or calcareous matter; capable of forming lime or limestone deposits.
From Latin 'calcis' (lime/calcium) + '-genous' (producing or generating). A geological and biological term describing organisms and processes that create calcium compounds.
Coral polyps are calcigenous powerhouses—each tiny animal secretes calcium carbonate to build structures that protect them, and over centuries these combine into entire reefs that form some of Earth's most biodiverse ecosystems.
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