D defs.my
Entry 1 sense Webster, 1913

Metamorphism

· Met·a·mor·phism · IPA /mɛtəˈmɔːfɪz(ə)m/
01 n. The state or quality of being metamorphic; the process by which the material of rock masses has been more or less recrystallized by heat, p…
  1. 1.
    The state or quality of being metamorphic; the process by which the material of rock masses has been more or less recrystallized by heat, pressure, etc., as in the change of sedimentary limestone to marble.(Geol.)