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



BrE BrE//ɪkˌstræpəˈleɪʃn//
; NAmE NAmE//ɪkˌstræpəˈleɪʃn//
[uncountable, countable] extrapolation (of something) (from/to something) (formal)
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the act or process of estimating something or forming an opinion about something, using the facts that you have now and that are valid for one situation and supposing that they will be valid for the new one Their age can be determined by extrapolation from their growth rate.