#1 protrusion n. [bulge, bump, hump, swelling, gibbosity, gibbousness, jut, prominence, protuberance, 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. wn
#2 protrusion n. [projection, jut, jutting] the act of projecting out from something. wn
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