accretion
accretion
(əkriːʃən )Word forms: plural accretions
1. countable noun
An accretion is an addition to something, usually one that has been added over a period of time.
[formal]The script has been gathering editorial accretions for years.
2. uncountable noun
Accretion is the process of new layers or parts being added to something so that it increases in size.
[formal]A coral reef is built by the accretion of tiny, identical organisms. [+ of]
