Standard Lemma guide

polyfill

noun · verb · 4 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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No pronunciation record was provided for this word.

1

noun

Meaning 1

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

Definition source: English Wiktionary via Wiktextract

Usage: uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

An algorithm to fill a polygon with a particular color.

Definition source: English Wiktionary via Wiktextract

Usage: uncountable

Topics: computer-graphics, computing, engineering, mathematics, natural-sciences, physical-sciences, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

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

Definition source: English Wiktionary via Wiktextract

Qualifier: web development

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: shim

4

verb

Meaning 4

To create or apply a polyfill.

Definition source: English Wiktionary via Wiktextract

Usage: intransitive, transitive

Qualifier: web development

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

Blend of polyester + fill.

Blend of polygon + fill.

Named with reference to the spackling paste Polyfilla.

Across languages

Translations

1 source translations are retained for this English entry.

  • Japanese: ポリフィル (porifiru) — plugin that provides functionality of newer browsers