What is the meaning of protruding?

verb

• Extend out or project in space.
  • usage: "His sharp nose jutted out"; "A single rock sticks out from the cliff"
  • synonyms: stick out, protrude, jut out, jut, project
• Bulge outward.
  • usage: "His eyes popped"
  • synonyms: start, protrude, pop, pop out, bulge, bulge out, bug out, come out
• Swell or protrude outwards.
  • usage: "His stomach bulged after the huge meal"
  • synonyms: bulge, pouch, protrude

adjective

• Extending out above or beyond a surface or boundary.
  • usage: "the jutting limb of a tree"; "massive projected buttresses"; "his protruding ribs"; "a pile of boards sticking over the end of his truck"
  • synonyms: jutting, projected, projecting, relieved, sticking, sticking out