n. 25B6; noun
the neck vertebrae have short vertical protrusions : BUMP, lump, knob; protuberance, projection, sticking-out bit, prominence, swelling, eminence, outcrop, outgrowth, jut, jag, snag; ledge, shelf, ridge; informal sticky-out bit.
protrusion of the lips : STICKING OUT, jutting, projection, obtrusion, prominence; swelling, bulging.