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 diapiric (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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