metachemistry noun2 •An extension of the ideas or methods of chemistry into other areas of inquiry.It is none the less true that a metachemistry came into being with the Mendeleeff table and that the ordering and rationalizing tendency led to ever more numerous, ever more profound successes. — 1968 •The study of substances that can release large amounts of energy relative to their mass, such as molecules in metastable excited states.
