what is a protuberance
A protuberance is something that sticks out, like a swelling or a lump or a bunion on your foot. A protuberance doesnât have to be hideous; it could be your nose on your face or a knot on a tree. The late Latin word prÅtÅ«berÄre meant to swell, coming from the prefix pro, which means forward, and the root word tÅ«ber, meaning swelling..