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Noun protrusion 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:
- protrusion, projection, jut, jutting - the act of projecting out from something
--2 is a kind of change of shape