Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun Growth or increase in size by gradual external addition, fusion, or inclusion.
  • noun Something contributing to such growth or increase.
  • noun Biology The growing together or adherence of parts that are normally separate.
  • noun Slow addition to land by deposition of water-borne sediment.
  • noun An increase of land along the shores of a body of water, as by alluvial deposit.
  • noun Astronomy An increase in the mass of a celestial object by its gravitational capture of surrounding interstellar material.

from The Century Dictionary.

  • noun The act of accreting or accrescing; a growing to; an increase by natural growth; an addition; specifically, an increase by an accession of parts externally.
  • noun In pathology, the growing together of parts normally separate, as the fingers or toes.
  • noun The thing added; an extraneous addition; an accession: commonly used in the plural, and restricted to accessions made slowly and gradually by some external force.
  • noun In law: The increase or growth of property by external accessions, as by alluvium naturally added to land situated on the bank of a river, or on the seashore.
  • noun In Scots law, the completion of an originally defective or imperfect right by some subsequent act on the part of the person from whom the right was derived.
  • noun In forestry, increase in diameter or height: distinguished from increment, increase in volume.
  • noun In petrol., a term proposed by Johnston-Lavis for a mass formed in solution by deposition about a nucleus, as in oölite, or upon the walls of a cavity.

from the GNU version of the Collaborative International Dictionary of English.

  • noun The act of increasing by natural growth; esp. the increase of organic bodies by the internal accession of parts; organic growth.
  • noun The act of increasing, or the matter added, by an accession of parts externally; an extraneous addition.
  • noun Concretion; coherence of separate particles.
  • noun A growing together of parts naturally separate, as of the fingers or toes.
  • noun 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 soil from the sea or a river, or by a gradual recession of the water from the usual watermark.
  • noun Gain to an heir or legatee, by failure of a coheir to the same succession, or a co-legatee of the same thing, to take his share.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun The act of increasing by natural growth; especially the increase of organic bodies by the internal accession of parts; organic growth.
  • noun The act of increasing, or the matter added, by an accession of parts externally; an extraneous addition; as, an accretion of earth.
  • noun Something added externally to promote growth the external growth of an item.
  • noun concretion; coherence of separate particles; as, the accretion of particles so as to form a solid mass.
  • noun biology A growing together of parts naturally separate, as of the fingers or toes.
  • noun geology The gradual increase of land by deposition of water-borne sediment.
  • noun law 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.
  • noun law 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.

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

  • noun something contributing to growth or increase
  • noun (biology) growth by addition as by the adhesion of parts or particles
  • noun (geology) an increase in land resulting from alluvial deposits or waterborne sediment
  • noun (astronomy) the formation of a celestial object by the effect of gravity pulling together surrounding objects and gases
  • noun (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)
  • noun an increase by natural growth or addition

Etymologies

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

[Latin accrētiō, accrētiōn-, from accrētus, past participle of accrēscere, to grow; see accrue.]

Examples

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