Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun protrusion
2 senses of protrusion
Sense 1
bulge, bump, hump, swelling, gibbosity, gibbousness, jut, prominence, protuberance, protrusion, extrusion, excrescence -- (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")
=> projection -- (any solid convex shape that juts out from something)
Sense 2
protrusion, projection, jut, jutting -- (the act of projecting out from something)
=> change of shape -- (an action that changes the shape of something)