|
|
 |
|
|
|
|
| met·a·mor·phism [ mèttə máwr fìzzəm ] |
noun |
|
| Definition: |
| |
change in rock structure: a process of change in the physical structure of rock as a result of long-term heat and pressure, especially a change that increases the rock's hardness and crystalline structure
|
|
|
|
