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accretion (noun)

См. также в других словарях:

  • accretion — ► NOUN 1) growth or increase by gradual accumulation. 2) a thing formed or added in this way …   English terms dictionary

  • accretion — ac·cre·tion /ə krē shən/ n 1: the process or a result of growth or enlargement: as a: the increase or extension of the boundaries of land or the consequent acquisition of land accruing to the owner by the gradual or imperceptible action of… …   Law dictionary

  • accretion disc — noun (astronomy) A flat disc formed by matter in orbit around a celestial body • • • Main Entry: ↑accrescent * * * accretion disk or accretion disc, Astronomy. a disk shaped formation of gases or other interstellar matter around a black hole,… …   Useful english dictionary

  • accretion — noun /ʌˈkɹiː.ʃən/ a) The act of increasing by natural growth; especially the increase of organic bodies by the internal accession of parts; organic growth. There might have been a slight accretion of the moss and lichen on the shingled roof. b)… …   Wiktionary

  • accretion — noun Etymology: Latin accretion , accretio, from accrescere more at accrue Date: 1615 1. the process of growth or enlargement by a gradual buildup: as a. increase by external addition or accumulation (as by adhesion of external parts or part …   New Collegiate Dictionary

  • accretion — (n.) 1610s, from L. accretionem (nom. accretio) an increasing, a growing larger (e.g. of the waxing moon), noun of action from pp. stem of accrescere, from ad to (see AD (Cf. ad )) + crescere grow (see CRESCENT (Cf. crescent)) …   Etymology dictionary

  • accretion borer — noun : a hollow auger used for cutting out from a tree a core from which accretion is estimated by counting annual rings …   Useful english dictionary

  • accretion cutting — noun or accretion thinning : thinning of trees in order to secure greater growth in girth of those left standing …   Useful english dictionary

  • accretion thinning — noun see accretion cutting …   Useful english dictionary

  • accretion disk — noun Date: 1972 a disk of usually gaseous matter surrounding a massive celestial object (as a black hole) in which the matter gradually spirals in toward and accretes onto the object as a result of gravitational attraction …   New Collegiate Dictionary

  • accretion disk — noun A structure formed by matter falling into a gravitational source such as a galaxy, black hole, or protostar …   Wiktionary

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