transitive verb-·lat·ed, -·lat·ing
- to alter, enlarge, or corrupt (a book or manuscript, etc.) by putting in new words, subject matter, etc.
- to insert between or among others; specif., to insert (a word or words) in a text
- Math. to estimate (a missing functional value) by taking a weighted average of known functional values at neighboring points, as in estimating a specific, missing intermediate value on a table, esp. a logarithmic or trigonometric table
Origin of interpolatefrom Classical Latin interpolatus, past participle of interpolare, to polish, dress up, corrupt from interpolis, altered by furbishing, repaired from inter-, between + polire, to polish