Definition of interpolation
1a : an act of interpolating something or the state of being interpolated : the introduction or insertion of something spurious or foreign … versions disfigured by the frequent and substantial interpolation of freely invented matter …— Bernard Knox
b : something that is introduced or inserted : an insertion or addition How can such interpolations be identified, and what literary processes led to these additions? —Jan Nattier
2 : the process of calculating an approximate value based on values that are already known The age of *tephras|tephra|} that were not directly dated was estimated by linear interpolation from the calibrated date.— Richard J. Payne and Jeffrey J. Blackford
Keep scrolling for more
showing great care, attention, and effort
Get Word of the Day daily email!
Love words? Need even more definitions?Merriam-Webster unabridged
Words at Play
Ask the Editors
- On Contractions of Multiple Words
- A Look at Uncommon Onomatopoeia
- Is Singular 'They' a Better Choice?