Definition of accretion noun from the Oxford Advanced American Dictionary

     

    accretion

     noun
    noun
    NAmE//əˈkriʃn//
     
    (technology or formal)
     
    jump to other results
  1. 1[countable] a layer of a substance that is slowly added to something
  2. 2[uncountable] the process of new layers being slowly added to something the accretion of sand by wind action
See the Oxford Advanced Learner's Dictionary entry: accretion