extrapolate - definition and synonyms

verb [intransitive/transitive] 

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/ɪkˈstræpəleɪt/
present tense
I/you/we/theyextrapolate
he/she/itextrapolates
present participleextrapolating
past tenseextrapolated
past participleextrapolated
  1. 1
    formal to say what is likely to happen or be true by using information that you already have
  2. 2
    maths to calculate an amount that you do not know by basing your calculations on amounts that you already know

derived word

extrapolation

 

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/ɪkˌstræpəˈleɪʃ(ə)n/
noun [countable/uncountable]
singularextrapolation
pluralextrapolations