diatreme
di a treme |ˈdīəˌtrēm ˈdaɪətrim | ▶noun Geology a long, vertical pipe or plug formed when gas-filled magma forced its way up through overlying strata. ORIGIN early 20th cent.: from dia- ‘through ’ + Greek trēma ‘perforation. ’
diatreme |ˈdʌɪətriːm | ▶noun Geology a long vertical pipe or plug formed when gas-filled magma forced its way up through overlying strata. ORIGIN early 20th cent.: from dia- ‘through ’ + Greek trēma ‘perforation ’.