Metamorphic meaning : A rock that has been changed from its original form by subjection to heat and/or pressure. Characterised by or exhibiting a change in form or character. Pertaining to metamorphism; having been structurally altered as a result of, or resulting from, exposure to intense heat and/or pressure (at the contact zone between colliding plates, for example). Pertaining to metamorphosis. Of or relating to the Metamorphic Technique, a form of massage influenced by reflexology.