adjective
- Astronomy. (of a heavenly body) convex at both edges, as the moon when more than half full.
- humpbacked.
adjective
- (of the moon or a planet) more than half but less than fully illuminated
- having a hunchback; hunchbacked
- bulging
c.1400, “bulging, convex,” from Late Latin gibbus “hunchbacked,” from Latin gibbus “hump, hunch,” of uncertain origin. Of the moon from early 15c.; also used from 15c. of hunchbacks.
adj.
- Characterized by convexity; protuberant.
- Having a hump; humpbacked.
- More than half but less than fully illuminated. Used to describe the Moon or a planet. Compare crescent.