metamorphic

adjective

meta·​mor·​phic ˌme-tə-ˈmȯr-fik How to pronounce metamorphic (audio)
1
: of or relating to metamorphosis
2
of a rock : of, relating to, or produced by metamorphism
metamorphically adverb

Examples of metamorphic in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
And although the soil match to Barolo is off, Harvey likens the blue metamorphic schist with a high mineral content to Piedmont DOCG Gattinara, which is known for its high quality but still under the radar Nebbiolo. Mike Desimone, Robb Report, 8 July 2025 The metamorphic rock from which Atlanta’s soil is derived also contributes to its alkalinity as does the constantly decomposing organic matter, consisting mostly of leaves, on the soil surface. Joshua Siskin, Oc Register, 28 June 2025 The latest paper focused on a specific type of metamorphic ancient rock — metagabbroic intrusions — sampled from within the belt, and the two data points converged on the same age: 4.16 billion years old. Katie Hunt, CNN Money, 27 June 2025 These models, as Stephens imagines, have absorbed all the scrutiny directed at their bodies and hardened, like metamorphic rock, into sharp and cutting things themselves. Jackson McHenry, Vulture, 6 May 2025 See All Example Sentences for metamorphic

Word History

Etymology

meta- + -morphic, after metamorphosis

Note: The geological term was introduced by Charles lyell in Principles of Geology, vol. 3 (London, 1833), p. 375: "We divide the hypogene rocks, then, into the unstratified, or plutonic, and the altered stratified. For these last the term 'metamorphic' (from μετα, trans, and μορφη, form) may be used." See also note at metamorphism.

First Known Use

1816, in the meaning defined at sense 1

Time Traveler
The first known use of metamorphic was in 1816

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Cite this Entry

“Metamorphic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/metamorphic. Accessed 22 Jul. 2025.

Kids Definition

metamorphic

adjective
meta·​mor·​phic ˌmet-ə-ˈmȯr-fik How to pronounce metamorphic (audio)
: changed into a more compact form by the action of pressure, heat, and water
a metamorphic rock
compare igneous, sedimentary sense 2

Medical Definition

metamorphic

adjective
meta·​mor·​phic ˌmet-ə-ˈmȯr-fik How to pronounce metamorphic (audio)
: of or relating to metamorphosis
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