Definition of extrapolate verb from the Oxford Advanced Learner's Dictionary

 

extrapolate

 verb
verb
BrE BrE//ɪkˈstræpəleɪt//
 
; NAmE NAmE//ɪkˈstræpəleɪt//
 
[intransitive, transitive](formal)Verb Forms present simple I / you / we / they extrapolate
BrE BrE//ɪkˈstræpəleɪt//
 
; NAmE NAmE//ɪkˈstræpəleɪt//
 
he / she / it extrapolates
BrE BrE//ɪkˈstræpəleɪts//
 
; NAmE NAmE//ɪkˈstræpəleɪts//
 
past simple extrapolated
BrE BrE//ɪkˈstræpəleɪtɪd//
 
; NAmE NAmE//ɪkˈstræpəleɪtɪd//
 
past participle extrapolated
BrE BrE//ɪkˈstræpəleɪtɪd//
 
; NAmE NAmE//ɪkˈstræpəleɪtɪd//
 
-ing form extrapolating
BrE BrE//ɪkˈstræpəleɪtɪŋ//
 
; NAmE NAmE//ɪkˈstræpəleɪtɪŋ//
 
 
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to estimate something or form 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 extrapolate (from/to something) The figures were obtained by extrapolating from past trends. Try not to extrapolate too much from your own experience. extrapolate something (from/to something) We have extrapolated these results from research done in other countries. The results cannot be extrapolated to other patient groups. Word Origin late 19th cent.: from extra- ‘outside’ + a shortened form of interpolate.
See the Oxford Advanced American Dictionary entry: extrapolate