bradyseism

== English == === Etymology === From brady- (“slow”) +‎ seism. === Noun === bradyseism (countable and uncountable, plural bradyseisms) (volcanology) 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 ==== Derived terms ==== bradyseismic ==== Translations ====