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.
source: WordNet 3.0
the increase in volume of certain substances when they are heated (often accompanied by release of water)
source: WordNet 3.0
The act of that which swells; as, the swelling of rivers in spring; the swelling of the breast with pride.
