Accretion



GRE Barron

解释

GRE 红宝书

• n.自然的增加;增加物
• ［英］ n.自然的增加 ( growth in size by accumulation) ; 增加物 ( addition)
• ［类］ 反义词: reduction in substance caused by erosion ( 由侵蚀引起的物质减少)
• ［记］ ac+cret ( 增加) +ion
• ［同］ adj. accretive

Webster Collegiate

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 particles)
  • b. the increase of land by the action of natural forces
• 2. a product of accretion; especially an extraneous addition accretions of grime
• • accretionary adjective
• • accretive adjective

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