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Meaning of interpolate

in•ter•po•late

Pronunciation: (in-tûr'pu-lāt"), [key]
— v., -lat•ed, -lat•ing.
—v.t.
  1. to introduce (something additional or extraneous) between other things or parts; interject; interpose; intercalate.
  2. to insert, estimate, or find an intermediate term in (a sequence).
  3. to alter (a text) by the insertion of new matter, esp. deceptively or without authorization.
  4. to insert (new or spurious matter) in this manner.
—v.i.
  1. to make an interpolation.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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