ex·trude /ɪkˈstruːd/ verb [transitiveT]1. PUSH formal to push or force something out through a hole 擠出 2. technicalTI to force plastic or metal through a hole so that it has a particular shape 將〔塑料、金屬〕擠壓成形 —extrusion /ɪkˈstruːʒən/ noun [countableC, uncountableU]