| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | rounded, curving outward |
| Synonyms: | arched, bent, biconvex, bulged, bulging, bulgy, gibbous, outcurved, protuberant, raised |
| Notes: | convex (from Latin convexus 'arched, vaulted') refers to a surface that curves outward, concave (from Latin concavus 'hollow') to a surface that curves inward |
| Antonyms: | concave, depressed, sinking |
| Main Entry: | crescent |
| Part of Speech: | adjective |
| Definition: | sickle-shaped |
| Synonyms: | bow-shaped, bowed, concave, convex, crescent-shaped, crescentic, crescentiform, curved, falcate, semicircular |
| Main Entry: | bulging |
| Part of Speech: | adjective |
| Definition: | curving outward |
| Synonyms: | convex, gibbous, protuberant |
| Antonyms: | contracting |
| Main Entry: | rounded |
| Part of Speech: | adjective |
| Definition: | curved |
| Synonyms: | bowed, circular, convex, globular, orbicular, oval, rotund, spherical |