extrusion

noun

ex·​tru·​sion ik-ˈstrü-zhən 

: the act or process of extruding

also : a form or product produced by this process

Examples of extrusion in a Sentence

Recent Examples on the Web

And, just like extrusion printing, this process can be built up by adding additional layers. — Paul Sisson, San Diego Union-Tribune, 12 Jan. 2026

There is even a mock car made of 80/20 aluminum extrusions, used to lay out an entire wiring harness and everything that attaches to it, short of a battery pack. — Kyle Hyatt, ArsTechnica, 5 May 2026

The resulting star forts (so called because of their multiple fortified extrusions) solved a technological crisis. — Big Think, 27 Mar. 2026

And there’s a good chance some of those products came from a plant about 50 miles north of Atlanta, at an aluminum extrusion plant in Gainesville owned by aluminum giant Hydro. — Mirtha Donastorg, AJC.com, 5 Mar. 2026

Word History

Etymology

Medieval Latin extrusion-, extrusio, from Latin extrudere

First Known Use

1540, in the meaning defined above

Rhymes for extrusion

• allusion
• collusion
• conclusion
• confusion
• contusion
• delusion
• diffusion
• effusion
• exclusion
• illusion
• inclusion
• infusion

Kids Definition

extrusion

noun

ex·​tru·​sion ik-ˈstrü-zhən 

: the act or process of extruding

also : a form or product produced by this process

Medical Definition

extrusion

noun

ex·​tru·​sion ik-ˈstrü-zhən 

: the act or process of extruding

extrusion of proteins from cells