noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A gradual uplift or descent of part of the Earth's surface caused by the filling or emptying of an underground magma chamber and/or hydrothermal activity, particularly in volcanic calderas countable, uncountable

Etymology

From brady- (“slow”) + seism.

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