Definitions of accretion

  1. ( geology) an increase in land resulting from alluvial deposits or water- borne sediment
  2. ( biology) growth by addition as by the adhesion of parts or particles
  3. ( astronomy) the formation of a celestial object by the effect of gravity pulling together surrounding objects and gases
  4. The act of increasing by natural growth; esp. the increase of organic bodies by the internal accession of parts; organic growth.
  5. The act of increasing, or the matter added, by an accession of parts externally; an extraneous addition; as, an accretion of earth.
  6. Concretion; coherence of separate particles; as, the accretion of particles so as to form a solid mass.
  7. A growing together of parts naturally separate, as of the fingers toes.
  8. The adhering of property to something else, by which the owner of one thing becomes possessed of a right to another; generally, gain of land by the washing up of sand or sail from the sea or a river, or by a gradual recession of the water from the usual watermark.
  9. Gain to an heir or legatee, failure of a coheir to the same succession, or a co- legatee of the same thing, to take his share.
  10. A growing to: increase.
  11. Act of growing to; increase.
  12. Growth; increase.
  13. An increase in growth, particularly by accessions externally. The growing together of parts naturally separate, as the fingers or toes. The adhering of property to something else, by which the owner of one thing acquires the right to another, as when a legacy is left to two persons, and one of them dies before the testator, the legacy devolves to the survivor by right of accretion.
  14. Increase by external addition of new matter.
  15. Growth by the external addition of new matter; in protozoology, agglomeration.
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