/ ɪkˈstruːd; NAmE / verb
1.
( formal ) to force or push sth out of sth; to be forced or pushed in this way :
[ vn ]
Lava is extruded from the volcano.
[also v ]
2.
[ vn ] ( technical ) to shape metal or plastic by forcing it through a hole
► ex·tru·sion / ɪkˈstruːʒn; NAmE / noun [ U ]
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WORD ORIGIN
mid 16th cent.: from Latin extrudere , from ex- out + trudere to thrust.