Extrusion - Definition

n 1: something that bulges out or is protuberant or projects
from its surroundings; "the gun in his pocket made an
obvious bulge"; "the hump of a camel"; "he stood on the
rocky prominence"; "the occipital protuberance was well
developed"; "the bony excrescence between its horns" [syn:
bulge, bump, hump, swelling, gibbosity,
gibbousness, jut, prominence, protuberance,
protrusion, extrusion, excrescence]
2: squeezing out by applying pressure; "an unexpected extrusion
of toothpaste from the bottom of the tube"; "the expulsion of
pus from the pimple" [syn: extrusion, expulsion]