adj. 1. curving or bulging outward. Opposite of concave. [ Narrower terms: biconvex, convexo-convex, lenticular, lentiform; broken-backed, hogged; convexo-concave; gibbous, gibbose; planoconvex ] Also See: protrusive. Syn. -- convex. [ WordNet 1.5 ]
2. curving outward. Syn. -- bellied, bellying, bulbous, bulgy, protuberant. [ WordNet 1.5 ]