pro ‧ cessed AC /ˈprəʊsest $ ˈprɑː-/ BrE AmE adjective [only before noun]
[ Word Family: noun : ↑ process , processing, ↑ procession , ↑ processor ; adjective : ↑ processed , ↑ processional ; verb : process]
processed food has substances added to it before it is sold, in order to preserve it, improve its colour etc
processed cheese/meat/fish etc
the artificial colourings and flavourings in processed foods