The present participle of carbonise (British spelling), meaning the process of turning something into carbon or a carbon compound.
From carbonise (British spelling of carbonize) + -ing suffix. The -ing form indicates an ongoing action or process in continuous tense or as a gerund.
The British 's' spelling is dying out in scientific contexts—even British chemists increasingly use 'z' because international science publications standardize on the American convention, showing how globalization reshapes language at the molecular level.
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