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Meaning of weathering

weath•er•ing

Pronunciation: (we'ur-ing), [key]
— n.
  1. wash (def. 48).
  2. material used as a weather strip.
  3. the various mechanical and chemical processes that cause exposed rock to decompose.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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