metamorphism
noun/ˌmɛtəˈmɔrfɪzəm/
Frequency rank: #19,573 most common English word
Meaning
The process by which rocks are changed in composition, texture, or structure due to heat, pressure, or chemical activity.

Example sentence
The intense heat and pressure caused metamorphism in the buried rock layers over millions of years.
Synonyms & related words
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