3d convex spherical, globe, orb protrude distortion, deformation on lines grid, mesh. bulge, bloat, inflate sphere. bulb, bump or

amplify belly bind bloat braid bump camber confluence conflux conjunction convexity cord crook dilate distend elbow enlarge entwine exaggerate expand extend flexion grow hump increase intertwine junction jut lace lump nexus pitch pop projection prominence protrude protrusion puff raise rise shift splice stretch string surface swell tangle tie traverse vein