Definition of erosional in US English:

erosional

adjective

  • See erosion

    • ‘The trail sliced up through an erosional landscape of mesas and deep gorges where the bird life was stunning.’
    • ‘Over millions of years the erosional processes caused by wind and waves have shaped this sequence of rocks.’
    • ‘This occurred prior to a major pre-Pennsylvanian erosional interval that removed Silurian sedimentary strata from the region.’
    • ‘Despite this bombardment, all ring moons have erosional lifetimes that exceed the solar system's age.’
    • ‘Even in a place as arid as the Grand Canyon, water has clearly been the dominant erosional process.’

Pronunciation

erosional

/əˈrōZHənl/