The Open Dictionary

accretion

noun

UK/əˈkriː.ʃᵊn/
US/əˈkriː.ʃᵊn/

Definitions of accretion noun

  1. CountableUncountable

    A gradual increase or growth resulting from the addition of new layers or parts.

    • The company achieved asset growth through the accretion of numerous acquisitions.

    • The rock's surface showed mineral accretion over time.

    • In the coral reef, the accretion of calcium carbonate formed new structures.