met·a·mor·phism 
(mĕt′ə-môrfĭz′əm)
(mĕt′ə-môrfĭz′əm)n.
The process by which rocks are altered in composition, texture, or internal structure by extreme heat, pressure, and the introduction of new chemical substances.
[METAMORPH(IC) + -ISM.]
- metaplastic
- metaplastic
- Metapontum
- metaproterenol
- metapsychology
- metasomatic
- metasomatically
- metasomatism
- metasomatosis
- metastability
- metastable
- metastasis
- metastasize
- metastatic
- metastatically
- metatag
- metatarsal
- metatarsally
- metatarsus
- metate
- metatheory
- metathesis
- metathesize
- metathetic
- metathetical