metamorphism: meaning, definition, pronunciation and examples
C2Technical/Academic
Quick answer
What does “metamorphism” mean?
The process by which rocks are changed in mineral composition, texture, or structure by heat, pressure, or chemically active fluids, without melting.
Audio
Pronunciation
Definition
Meaning and Definition
The process by which rocks are changed in mineral composition, texture, or structure by heat, pressure, or chemically active fluids, without melting.
In a broader figurative sense, a process of profound and complete change in form, structure, or substance.
Dialectal Variation
British vs American Usage
Differences
No significant difference in meaning or usage. Spelling is identical.
Connotations
Slightly more common in British academic writing in historical geology contexts; more frequently used in American technical literature concerning modern tectonic processes.
Frequency
Very low frequency in general language. Exclusively found in specialized texts in both varieties.
Grammar
How to Use “metamorphism” in a Sentence
The metamorphism of [rock type] resulted in...[Rock type] underwent metamorphism under [conditions].Metamorphism caused by [heat/pressure/fluid].Vocabulary
Collocations
Examples
Examples of “metamorphism” in a Sentence
verb
British English
- The shale was metamorphosed under immense pressure.
- These rocks have been metamorphosing for millions of years.
American English
- The granite was metamorphosed by the intruding magma.
- Heat and pressure metamorphose the existing rock.
adverb
British English
- The rock changed metamorphically over eons.
- (Extremely rare usage)
American English
- The minerals recrystallized metamorphically.
- (Extremely rare usage)
adjective
British English
- The metamorphic rocks showed distinct foliation.
- We studied the metamorphic history of the region.
American English
- The metamorphic facies indicates deep burial.
- Metamorphic processes create new minerals.
Usage
Meaning in Context
Business
Virtually never used. Possible in a hyperbolic metaphor for corporate restructuring.
Academic
Core term in geology, earth sciences. Used figuratively in literary theory, cultural studies (e.g., 'the metamorphism of the novel').
Everyday
Extremely rare. Would be a deliberate, learned borrowing from geology.
Technical
Precise term in geology/petrology to describe specific rock-forming processes (e.g., 'blueschist facies metamorphism').
Vocabulary
Synonyms of “metamorphism”
Strong
Neutral
Vocabulary
Antonyms of “metamorphism”
Watch out
Common Mistakes When Using “metamorphism”
- Misspelling as 'metamorphosis'. Using it as a synonym for any change, losing the geological specificity. Incorrectly using it as a verb ('to metamorphism' instead of 'to metamorphose').
FAQ
Frequently Asked Questions
No. 'Metamorphism' is strictly a geological/process term for rocks. 'Metamorphosis' is a biological term for a dramatic physical change in an organism (e.g., tadpole to frog) or a general term for a complete transformation.
No. The verb form is 'metamorphose'. You would say 'The rock metamorphosed', not 'The rock metamorphismed'.
Regional metamorphism, caused by the heat and pressure associated with large-scale tectonic events like mountain building.
Yes. Marble is the metamorphic rock formed from the recrystallization of limestone or dolomite under heat and pressure.
The process by which rocks are changed in mineral composition, texture, or structure by heat, pressure, or chemically active fluids, without melting.
Metamorphism is usually technical/academic in register.
Metamorphism: in British English it is pronounced /ˌmɛtəˈmɔːfɪz(ə)m/, and in American English it is pronounced /ˌmɛdəˈmɔːrfɪzəm/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “[Figurative] a metamorphism of ideas/policy.”
Learning
Memory Aids
Mnemonic
Think of META (change) + MORPH (form) + ISM (process). A process of changing form, like a rock's makeover under the earth.
Conceptual Metaphor
PROFOUND CHANGE IS GEOLOGICAL METAMORPHISM (e.g., 'The country's political landscape underwent a slow metamorphism.').
Practice
Quiz
Which of these is NOT a primary agent of metamorphism?