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diapir

play
noun di·a·pir \ˈdī-ə-ˌpir\

Definition of diapir

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

di·a·pir·ic play \ˌdī-ə-ˈpir-ik\ adjective


Origin of diapir

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


First Known Use: 1918


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