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1. Oxford Dictionary

   accretion

   • IPA[əˈkriːʃn]

   英式

   • n.
     growth or increase by the gradual accumulation of additional layers or matter；a thing formed or added by gradual growth or increase

   • noun: accretion, plural noun: accretions

2. • 釋義

   n.

   名詞

   • 1. growth or increase by the gradual accumulation of additional layers or matter the accretion of sediments in coastal mangroves the growing accretion of his power and influence 同義詞 accumulation, collecting, gathering, amassing, cumulation, ... 更多accrual, growth, formation, enlargement, increase, gain, augmentation, rise, mushrooming, snowballing, rareamassment
   • ▪ a thing formed or added by gradual growth or increase the city has a historic core surrounded by recent accretions 同義詞 addition, extension, growth, appendage, add-on, ... 更多supplement
   • ▪ the coming together and cohesion of matter under the influence of gravitation to form larger bodies during the later stages of accretion the outer 100 km or so of the Moon melted