# interpolation

/ˌɪˈtɝpəˌɫeɪʃən/ (US) · CEFR B2 · Noun

Source: https://englishreference.com/word/interpolation
Updated: 2026-09-28

## Definition

estimating an unknown value that lies between two known data points.

For teachers: the mathematical estimation or prediction of intermediate values lying strictly within the convex hull or support of observed data points.

## Examples

- By simple interpolation, we guessed the temperature at noon was twenty degrees since it was eighteen at ten and twenty-two at two.
- Generative models produce smooth video transitions through latent space interpolation between start and end frames.
- In high-dimensional overparameterized regimes, neural network interpolation achieves zero empirical training loss while sustaining low generalization error.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.