extrusion
ex-tru-sion
noun
Something that has been forced out or pushed through a small opening.
"The extrusion of lava from the volcano was slow."
noun
The process of forcing material through a die to create a continuous shape.
"Aluminium extrusion is common in modern construction."
Thesaurus
Synonyms: prominence, gibbosity, protuberance, swelling, bump, bulge, hump, gibbousness, jut, protrusion, excrescence, expulsion