[erode] vb erod.ed ; erod.ing [L erodere to eat away, fr. e- + rodere to gnaw--more at rodent] vt (1612) 1: to diminish or destroy by degrees: a: to eat into or away by slow destruction of substance (as by acid, infection, or cancer) b: to wear away by the action of water, wind, or glacial ice c: to cause to deteriorate or disappear as if by eating or wearing away "inflation eroding buying power"
2: to produce or form by eroding "glaciers ~ U-shaped valleys" ~ vi: to undergo erosion -- erod.ibil.i.ty n -- erod.ible adj