accretionary

adjective

ac·​cre·​tion·​ary ə-ˈkrē-shə-ˌner-ē How to pronounce accretionary (audio)
1
: marked by or involving accretion
2
: produced by accretion

Word History

First Known Use

1841, in the meaning defined at sense 1

Time Traveler
The first known use of accretionary was in 1841

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Cite this Entry

“Accretionary.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/accretionary. Accessed 13 Dec. 2025.

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