Meaning of “additive” in the English Dictionary

british dictionary

"additive" in American English

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additivenoun [ C ]

us /ˈæd·ə·t̬ɪv/

something added to a substance, esp. food, to improve it or to preserve it:

Additives keep certain foods fresh.
This paint has an additive that keeps mold from growing on it.

(Definition of “additive” from the Cambridge Academic Content Dictionary © Cambridge University Press)