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Definition of prolongation noun from the Oxford Advanced Learner's Dictionary

prolongation

noun

/ˌprəʊlɒŋˈɡeɪʃn/

/ˌprəʊlɔːŋˈɡeɪʃn/

[uncountable, singular] (formal)

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the act of making something last longer
- the artificial prolongation of human life
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See prolongation in the Oxford Advanced American Dictionary

Check pronunciation: prolongation

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verb

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