noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   An intrusion of a ductile rock into an overburden.

   ""If a diapir is outside an established plume it rises at a much slower rate," Loper says."

2. 2
   a domed rock formation where a core of rock has moved upward and pierced through the more brittle overlying strata wordnet

Example

More examples

""If a diapir is outside an established plume it rises at a much slower rate," Loper says."

Etymology

From Ancient Greek διαπειραίνω (diapeiraínō, “to pierce through”).

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.