Definitions

1. noun

a slow and gradual movement of the Earth’s crust, typically resulting in the uplift or subsidence of land over a long period of time

“The geologists studied the area to understand the causes of the ongoing bradyseism, which had been affecting the local ecosystem.”

2. noun

a type of slow and imperceptible earthquake or seismic activity

“The researchers detected a bradyseism in the region, which they believed was connected to the nearby volcanic activity.”