polyfill

Etymology 1
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Noun

 * 1) A synthetic textile used for bulk or insulation, e.g., in stuffed animals or coats.

Etymology 2
.

Noun

 * 1)  An algorithm to fill a polygon with a particular color.

Etymology 3
Named with reference to the spackling paste.

Noun

 * 1)  A plugin that provides the functionality of newer browsers to older versions.

Translations

 * Japanese: ポリフィル

Verb

 * 1)  To create or apply a polyfill.