Definition of "interpolate" [in•ter•po•late]

• To insert or introduce between other elements or parts. (verb-transitive)
• To insert (material) into a text. (verb-transitive)
• To insert into a conversation. See Synonyms at introduce. (verb-transitive)
• To change or falsify (a text) by introducing new or incorrect material. (verb-transitive)
• Mathematics To estimate a value of (a function or series) between two known values. (verb-transitive)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "For minor intervals I'd just interpolate from the nearest major/perfect."
• "And right here I'd like to interpolate a word or two about Canadian poetry, our native poetry as you will find it, for example, in that precious but often impoverished quarterly known as the Canadian Poetry Magazine."
• "But right now, none of the observing sites are operating above about 6,600 feet or so, so we have to kind of interpolate a little bit, and we're guessing at this time maybe into the low teens at best for the temperature at this hour."