From Longman Dictionary of Contemporary EnglishE numberE num‧ber /ˈiː ˌnʌmbə $ -ər/ noun [countable] British EnglishDFN a number representing a chemical that has been added to a food, shown on the outside of a container
Examples from the Corpus
E number• Not all of these additives are known by an E number categorisation.• If you enter a part-specification in the E number definition, all those matching the entry will be shown.• Any valid E number may be entered, or the material's chemical name. 