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Noun extrusion has 2 senses
- bulge, bump, hump, gibbosity, gibbousness, jut, prominence, protuberance, protrusion, extrusion, excrescence - something that bulges out or is protuberant or projects from a form
--1 is a kind of projection
--1 has particulars:
- extrusion, expulsion - squeezing out by applying pressure; "an unexpected extrusion of toothpaste from the bottom of the tube"; "the expulsion of pus from the pimple"
--2 is a kind of squeeze, squeezing