• 1.To infer (values of a variable in an unobserved interval) from values within an already observed interval.

  • 2a. to project, extend or expand (known data or experience) into an area not known or experienced so as to arrive at a usually conjectural knowledge of the unknown area (extrapolates present trends to construct an image of the future).
  • 2b. to predict by projecting past experiences or known data (extrapolate public sentiment on one issue from known public reaction on others
  • In non technical terms, extrapolation is to read between the lines, to make the intuitive leap To judge your gut feeling and grok the whole.