from
The Collaborative International Dictionary of English v.0.48
Extrude \Ex*trude"\, v. t. [imp. & p. p. {Extruded}; p. pr. &
vb. n. {Extruding}.] [L. extrudere, extrusum; ex out +
trudere to thrust, akin to E. threat. See {Threat}.]
1. To thrust out; to force, press, or push out; to expel; to
drive off or away. "Parentheses thrown into notes or
extruded to the margin." --Coleridge.
[1913 Webster]
2. (Metallurgy) To shape or form by forcing metal heated to a
semi-plastic condition through dies by the use of
hydraulic power; as, extruded metal, extruded rods,
extruded shapes.
[Webster 1913 Suppl.]