| 1. | 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. |
| 2. | (Chem.) Other; duplicate, corresponding to; resembling; hence, metameric; as, meta-arabinic, metaldehyde. |
| 3. | A prefix meaning at a level above, as in metaphysics, metalanguage. |