Standard Lemma guide

extrusion

noun · 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

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • rhymes with -uːʒən
  • CMU ARPABET: IH0 K S T R UW1 ZH AH0 N Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

A manufacturing process where a billet of material is pushed and/or drawn through a die to create a shaped rod, rail or pipe.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

An item formed by the process of extrusion.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

squeezing out by applying pressure

Definition source: Princeton WordNet 3.0

Examples

  • an unexpected extrusion of toothpaste from the bottom of the tube
  • the expulsion of pus from the pimple

Meaning relationships

Synonyms: expulsion

Antonyms: none provided

Broader terms: squeeze, squeezing

4

noun

Meaning 4

something that bulges out or is protuberant or projects from its surroundings

Definition source: Princeton WordNet 3.0

Examples

  • the gun in his pocket made an obvious bulge
  • the hump of a camel
  • he stood on the rocky prominence
  • the occipital protuberance was well developed
  • the bony excrescence between its horns

Meaning relationships

Synonyms: bulge, bump, hump, swelling, gibbosity, gibbousness, jut, prominence, protuberance, protrusion, excrescence

Antonyms: none provided

Broader terms: projection

Narrower terms: frontal eminence, occipital protuberance, belly, caput, mogul, nub, nubble, snag, wart

History

Etymology

Mid-16th century from Latin extrūdere, from ex- (“out”) + trūdere (“to thrust”).

Across languages

Translations

14 source translations are retained for this English entry.

  • Asturian: estrusión — manufacturing process
  • Bulgarian: изтикване (iztikvane) — manufacturing process
  • Bulgarian: избутване (izbutvane) — manufacturing process
  • Catalan: extrusió — manufacturing process
  • Finnish: ekstruusio — manufacturing process
  • French: extrusion — manufacturing process
  • German: Extrusion — manufacturing process
  • German: Formdrücken — manufacturing process
  • German: Formpressen — manufacturing process
  • German: Strangpressen — manufacturing process
  • Italian: estrusione — manufacturing process
  • Norwegian: ekstrudering — manufacturing process
  • Portuguese: extrusão — manufacturing process
  • Spanish: extrusión — manufacturing process
Real reading context

extrusion in complete knowledge articles