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polyfill

The English word “polyfill” has 4 meanings listed here.

noun

  1. A synthetic textile used for bulk or insulation, e.g., in stuffed animals or coats.
  2. An algorithm to fill a polygon with a particular color.
  3. A plugin that provides the functionality of newer browsers to older versions.

verb

  1. To create or apply a polyfill.

Etymology

Blend of polyester + fill.

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Definitions are from Wiktionary, extracted by Kaikki.org, and are available under the CC BY-SA 4.0 licence.