the world > action or operation > operation upon something > [adjective] > involving subjection to action or influence > subjected to a process (5)
Manufactured, concocted; (also) treated for some purpose by a special process.
in various senses of the verb.
Subjected to or treated by a special process (cf. process, n. 8b, process, v.1 3); esp. (of food) preserved by processing.