Definition of metamict in English:

metamict

adjective

Mineralogy
  • Of a mineral: converted into an amorphous state, with loss of internal crystal structure, as a result of natural radioactive decay of its constituent atoms.

Origin

1920s. From Danish metamikt from ancient Greek μετα- + μικτός mixed, blended.

Pronunciation

metamict

/ˈmɛtəmɪkt/