extruder

WordReference Random House Learner's Dictionary of American English © 2025

ex•trude /ɪkˈstrud/   v. [~ + object] , -trud•ed, -trud•ing. 

1. Geology to force or press out, as through a small opening that gives shape:
   The spaghetti-making machine extrudes dough through tiny holes.

ex•tru•sion /ɪkˈstruʒən/  n. [uncountable] See -trude-.

WordReference Random House Unabridged Dictionary of American English © 2025

ex•trude  (ik stro̅o̅d′), v., -trud•ed, -trud•ing. 
v.t. 

1. Geology to thrust out; force or press out;
   expel:
   to extrude molten rock.
2. Metallurgy to form (metal, plastic, etc.) with a desired cross section by forcing it through a die.

v.i. 

3. to protrude.
4. Metallurgy to be extruded:
   This metal extrudes easily.

• Latin extrūdere to thrust out, drive out, equivalent. to ex- ex-¹ + trūdere to thrust, push
• 1560–70

ex•trud′er, n. 
ex•tru•si•ble  (ik stro̅o̅′sə bəl, -zə-), ex•trud′a•ble, adj.