ex·trap·o·late [ ik stráppə làyt ](past and past participleex·trap·o·lat·ed, present participleex·trap·o·lat·ing, 3rd person present singularex·trap·o·lates)
verb
Definition:
1. transitive and intransitive verb infer: to use known facts as the starting point from which to draw inferences or conclusions about something unknown We try to avoid extrapolating a flu epidemic from mere anecdotal evidence.
2. transitive verb estimate value: to estimate a value that falls outside a range of known values, e.g. by extending a curve on a graph