|1.||the act or process of extruding|
|2.||a. the movement of magma onto the surface of the earth through volcano craters and cracks in the earth's crust, forming igneous rock|
|b. any igneous rock formed in this way|
|3.||a component or length of material formed by the process of extruding|
|[C16: from Medieval Latin extrūsiō, from extrūdere to |
|a fool or simpleton; ninny.|
|a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.|
extrusion ex·tru·sion (ĭk-str&oomacr;'zhən)
A thrusting or forcing out of a normal position.
The eruption or migration of a tooth beyond its normal occlusal position.
|extrusion (ĭk-str'zhən) Pronunciation Key