s]
| 1. | Astronomy. (of a heavenly body) convex at both edges, as the moon when more than half full. |
| 2. | humpbacked. |
gibbous gib·bous (gĭb'əs)
adj.
Characterized by convexity; protuberant.
Having a hump; humpbacked.
| gibbous (gĭb'əs) Pronunciation Key
More than half but less than fully illuminated. Used to describe the Moon or a planet. Compare crescent. |