Metamorphic
Pronunciation : Met`a*mor"phic
Part of Speech : a.
Etymology : [See Metamorphosis.]
Definition : 1. Subject to change; changeable; variable.
2. Causing a change of structure.
3. (Geol.)
Defn: Pertaining to, produced by, or exhibiting, certain changes which minerals or rocks may have undergone since their original deposition; -- especially applied to the recrystallization which sedimentary rocks have undergone through the influence of heat and pressure, after which they are called metamorphic rocks.
Source : Webster's Unabridged Dictionary, 1913