extrusion

[ ik-stroo-zhuhn ]

noun

1. the act of extruding or the state of being extruded.
2. something that is extruded.

extrusion

/ ɪkˈstruːʒən /

noun

1. the act or process of extruding
2. 1. the movement of magma onto the surface of the earth through volcano craters and cracks in the earth's crust, forming igneous rock
   2. any igneous rock formed in this way
3. a component or length of material formed by the process of extruding

extrusion

/ ĭk-stro̅o̅′zhən /

1. The emission of lava onto the surface of the Earth.
2. ◆ 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.
3. Compare intrusion
4. The process of making a shaped object, such as a rod or tube, by forcing a material into a mold.

Derived Forms

• exˈtrusible, adjective

Word History and Origins

Origin of extrusion¹

1530–40; < Medieval Latin extrūsiōn- (stem of extrūsiō ), equivalent to Latin extrūs ( us ) (past participle of extrūdere to extrude ) + -iōn- -ion

Word History and Origins

Origin of extrusion¹

C16: from Medieval Latin extrūsiō, from extrūdere to extrude

Related Words

• banishment
• discharge
• displacement
• ejection
• eviction
• exclusion
• ouster
• purge
• removal
• suspension