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extrusion's - 2 dictionary results
ex·tru·sion     (ĭk-strōō'zhən)  Pronunciation Key 
n.  
  1. The act or process of pushing or thrusting out.
  2. The act or process of shaping by forcing through a die.
  3. An object or material produced by extruding.


[Medieval Latin extrūsiō, extrūsiōn-, from Latin extrūsus, past participle of extrūdere, to thrust out; see extrude.]

extrusion   (ĭk-str'zhən)  Pronunciation Key 
  1. The emission of lava onto the surface of the Earth. ◇ Rocks that form from the cooling of lava are generally fine-grained (because they cool quickly, before large crystals can grow) and are called extrusive rocks. Compare intrusion.
  2. The process of making a shaped object, such as a rod or tube, by forcing a material into a mold.

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