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extrusion

nounC2Rare in speech; mostly a word you read · #15,033 of 15,258mostly written

Other forms: extrusions

Extrusion is material pushed through a shaped opening to form a length. Aluminium extrusion, an extrusion die, plastic extrusion.

Everything with a constant cross-section is made this way, from window frames to pasta, and the shape of the hole is the shape of the product. The Latin means pushing out, and the die is the expensive part.

Coyau · CC BY-SA 3.0

Definitions of extrusion

  1. 1nounextrusionMaterial pushed through a shaped opening to form a length.C2

    “The factory makes plastic pipes by extrusion, then cuts them to size.”

extrusion is a process.

Where it comes from

Latin extrudere means to push out, from ex plus trudere, to thrust.

  1. Latin

    extrūdere

  2. English, today

    extrusion

Mid-16th century from Latin extrūdere, from ex- + trūdere.

Etymology from Wiktionary, CC BY-SA

Practised in Factory & Manufacturing

Practise this word

extrusion in the wild

  • Some home machines can make macaroni shapes but, like most pasta, macaroni is usually made commercially by large-scale extrusion.

    Macaroni

  • The common curved shape is created by different speeds of extrusion on opposite sides of the pasta tube as it comes out of the machine.

    Macaroni

  • The extrusion of metals can also increase their strength.

    Extrusion

  • The other is extrusion, such as a volcanic eruption or similar event.

    Intrusive rock

  • In contrast, an extrusion consists of extrusive rock, formed above the surface of the crust.

    Intrusive rock

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From Wikipedia, CC BY-SA 4.0. These sentences were written by other people about their own subjects; they are here to show the word at work, not as anybody’s opinion.