Meaning of 'met-' (Webster Dictionary)
- A prefix meaning between, with, after, behind, over, about,
reversely; as, metachronism, the error of placing after the correct
time; metaphor, lit., a carrying over; metathesis, a placing reversely.
- Other; duplicate, corresponding to; resembling; hence,
metameric; as, meta-arabinic, metaldehyde.
- That two replacing radicals, in the benzene nucleus, occupy the
relative positions of 1 and 3, 2 and 4, 3 and 5, 4 and 6, 5 and 1, or 6
and 2; as, metacresol, etc. See Ortho-, and Para-.
- Having less than the highest number of hydroxyl groups; -- said
of acids; as, metaphosphoric acid. Also used adjectively.