diapir

noun
di·​a·​pir | \ ˈdī-ə-ˌpir How to pronounce diapir (audio) \

Definition of diapir

: an anticlinal fold in which a mobile core has broken through brittle overlying rocks

Other Words from diapir

diapiric \ ˌdī-​ə-​ˈpir-​ik How to pronounce diapir (audio) \ adjective

First Known Use of diapir

1918, in the meaning defined above

History and Etymology for diapir

French, probably from Greek diapeirein to drive through, from dia- + peirein to pierce; akin to Greek poros passage — more at fare

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Dictionary Entries Near diapir

diaphysis

diapir

Diaporthaceae

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Cite this Entry

“Diapir.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/diapir. Accessed 21 Sep. 2021.

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More from Merriam-Webster on diapir

Britannica.com: Encyclopedia article about diapir

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