1. To wear (something) away by or as if by abrasion: Waves eroded the shore.
2. To eat into; corrode.
3. To make or form by wearing away: The river eroded a deep valley.
4. To cause to diminish or deteriorate as if by eating into or wearing away: "Long enduring peace often erodes popular resolution" (C.L. Sulzberger).
v.intr.
To become worn or eaten away: The cliffs have eroded over the centuries. Public confidence in the administration eroded.
[Latin rdere, to gnaw off, eat away : -, ex-, ex- + rdere, to gnaw; see rd- in Indo-European roots.]
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