D defs.my
Entry 1 sense Webster, 1913

Extrusion

/ĭk-stro͞ozh'-ən/ · Ex·tru·sion · IPA /ɪkstrˈuːʒən/
01 n. The act of thrusting or pushing out; a driving out; expulsion.
  1. 1.
    The act of thrusting or pushing out; a driving out; expulsion.