accretion noun - Definition, pictures, pronunciation and usage notes | Oxford Advanced American Dictionary at OxfordLearnersDictionaries.com

Definition of accretion noun from the Oxford Advanced American Dictionary

accretion

noun

NAmE//əˈkriʃn//

(technology or formal)

1[countable] a layer of a substance that is slowly added to something

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2[uncountable] the process of new layers being slowly added to something the accretion of sand by wind action

See accretion in the Oxford Advanced Learner's Dictionary

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