WordWeight : Weighing the Words

Pronunciation : In*ter`po*la"tion
Part of Speech : n.
Etymology : [L. interpolatio an alteration made here and there: cf. F. interpolation.]
Definition : 1. The act of introducing or inserting anything, especially that which is spurious or foreign.

2. That which is introduced or inserted, especially something foreign or spurious. Bentley wrote a letter . . . . upon the scriptural glosses in our present copies of Hesychius, which he considered interpolations from a later hand. De Quincey.

3. (Math.)

Defn: The method or operation of finding from a few given terms of a series, as of numbers or observations, other intermediate terms in conformity with the law of the series.
Source : Webster's Unabridged Dictionary, 1913