Definition of accretion


  • an increase by natural growth or addition. Synonyms: accumulation.
  • something contributing to growth or increase; "he scraped away the accretions of paint", "the central city surrounded by recent accretions".
  • (astronomy) the formation of a celestial object by the effect of gravity pulling together surrounding objects and gases.
  • (biology) growth by addition as by the adhesion of parts or particles.
  • (geology) an increase in land resulting from alluvial deposits or waterborne sediment.
  • (law) an increase in a beneficiary's share in an estate (as when a co-beneficiary dies or fails to meet some condition or rejects the inheritance).

Related words

backup, buildup, deposit, deposition.

Rhymes with accretion

completion, deletion, depletion, excretion, grecian, phoenician, secretion, venetian.

Start with accretion

accretions, accretionary.

More information about accretion

accretion unscrambled

Scrabble and Words With Friends points

  • accretion is a valid Scrabble US word, worth 13 points
  • accretion is a valid Scrabble UK word, worth 13 points
  • accretion is a valid Words With Friends word, worth 16 points
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noun: a reappearance of an earlier characteristic.

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