extrapolate

 
Pronunciation: /ɪkˈstrapəleɪt, ɛk-/

verb

[with object]
  • extend the application of (a method or conclusion) to an unknown situation by assuming that existing trends will continue or similar methods will be applicable: the results cannot be extrapolated to other patient groups [no object]: it is always dangerous to extrapolate from a sample
  • estimate or conclude (something) by extrapolating: the figures were extrapolated from past trends
  • Mathematics extend (a graph, curve, or range of values) by inferring unknown values from trends in the known data: the low-temperature results can be extrapolated to room temperature (as adjective extrapolated) a set of extrapolated values

Derivatives

extrapolation

Pronunciation: /-ˈleɪʃ(ə)n/
noun

extrapolative

Pronunciation: /-lətɪv/
adjective

extrapolator

noun

Origin:

late 19th century: from extra- 'outside' + a shortened form of interpolate