additive
noun [ C ] uk/ˈæd.ɪ.tɪv/ us/ˈæd.ə.t̬ɪv/
（食品的）添加剂，添加物
a substance that is added to food in order to improve its taste or appearance or to keep it fresh and stop it from decaying
food additives 食品添加剂
This margarine is full of additives - just look at the label! 这种人造黄油里面都是添加剂——看看标签说明就知道了！