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retrogradation

noun
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ret·​ro·​gra·​da·​tion | \ ˌre-trō-grā-ˈdā-shən How to pronounce retrogradation (audio) , -grə- \

Definition of retrogradation

: the action or process of retrograding

First Known Use of retrogradation

15th century, in the meaning defined above

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The first known use of retrogradation was in the 15th century

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Cite this Entry

“Retrogradation.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/retrogradation. Accessed 9 December 2019.

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