"protuberance" in the noun 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"
2. protuberance
the condition of being protuberant the condition of bulging out
"the protuberance of his belly"
Source: WordNet® (An amazing lexical database of English)
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