ex ‧ trude /ɪkˈstruːd/ BrE AmE verb [transitive]
[ Date: 1500-1600 ; Language: Latin ; Origin: extrudere , from trudere 'to push' ]
1 . formal to push or force something out through a hole
2 . technical to force plastic or metal through a hole so that it has a particular shape
—extrusion /ɪkˈstruːʒ ə n/ noun [uncountable and countable]