Similar Words to Protrusion:
Bulge
Bump
Excrescence
Extrusion
Gibbosity
Gibbousness
Hump
Jut
Jutting
Projection
Prominence
Protuberance
Swelling
Definitions of Protrusion:
1. Something that bulges out or is protuberant or projects from its surroundings
2. The act of projecting out from something