extrudˈer noun

extruˈsible adjective

extrusile /-trooˈsīl/ adjective

extrusion /-trooˈzhən/ noun

1. The act of extruding, thrusting or throwing out
2. Expulsion
3. A rock formed by the cooling of magma or lava
4. The operation of producing rods, tubes, etc of metal or plastic by forcing suitable material through a die by means of a ram

extrusive /-trooˈsiv/ adjective

(of a rock) formed from molten rock material such as magma or lava

extruˈsory /-sər-i/ adjective