It’s definitely juice. n. A fluid naturally contained in plant or animal tissue: fruit juice; meat braised in its own juices. n. A bodily secretion: digestive

It’s definitely juice. n. A fluid naturally contained in plant or animal tissue: fruit juice; meat braised in its own juices. n. A bodily secretion: digestive juices. n. The liquid contained in something that is chiefly solid. They’re macerated and crushed, their contents mixed with water. Of course by the same token milk is also a subset of juice, of the type “mucosal excretion.”