What is the meaning of excrescence?

noun

• Something that bulges out or is protuberant or projects from its surroundings.
  • usage: "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"
  • synonyms: bulge, bump, hump, swelling, gibbosity, gibbousness, jut, prominence, protuberance, protrusion, extrusion
• Pathology) an abnormal outgrowth or enlargement of some part of the body. (.