Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • transitive v. To erode or be eroded by abrasion.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • v. To gnaw into; to wear away; to fret; to consume.
  • v. To erode, as the bed of a stream.
  • v. To scrape or rake together; to accumulate laboriously.

from the GNU version of the Collaborative International Dictionary of English

  • transitive v. To gnaw into; to wear away; to fret; to consume.
  • transitive v. To erode, as the bed of a stream. See Corrosion.

from The Century Dictionary and Cyclopedia

  • To scrape or rake together; accumulate laboriously.
  • In geology, to abrade and remove (rock), as by running streams charged with grit.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • v. wear away

Etymologies

Latin corrādere, to scrape together : com-, com- + rādere, to scrape; see rēd- in Indo-European roots.
(American Heritage® Dictionary of the English Language, Fourth Edition)

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