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Definition of Accretion:
The accumulation of sediment, deposited by natural fluid flow processes.[1].
This is the common definition for Accretion, other definitions can be discussed in the article


  1. CIRIA (1996). Beach management manual. CIRIA Report 153.

Definition of accretion or aggradation given in Definitions of coastal terms: Growth (vertical and/or horizontal) of morphological structures (beach, bar, dune, sand bank, tidal flat, salt marsh, tidal channel, etc.) by sedimentation.

See also