extrude

Concise Oxford English Dictionary © 2008 Oxford University Press:
extrude /ɪkˈstruːd, ɛk-/

▶verb thrust or force out.

■ shape (a material such as metal or plastic) by forcing it through a die.

– derivatives
extrudable adjective,
extrusile adjective,
extrusion noun.

– origin C16: from L. extrudere, from ex- ‘out’ + trudere ‘to thrust’.