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a. Characterized by convexity; protuberant: a gibbous seashell.
b. More than half but less than fully illuminated from the point of view of an observer. Used of phases of the moon or the planets.
2. Archaic Having a hump; humpbacked.
[Middle English, bulging, from Late Latin gibbōsus, hunch-backed, from Latin gibbus, hump.]
1. (Astronomy) (of the moon or a planet) more than half but less than fully illuminated
2. having a hunchback; hunchbacked
[C17: from Late Latin gibbōsus humpbacked, from Latin gibba hump]
1. (of a heavenly body) convex at both edges, as the moon when more than half full.
[1350–1400; Middle English < Latin gibbōsus humped =gibb(a) hump + -ōsus -ous]
More than half but less than fully illuminated. Used to describe the moon or a planet. Compare crescent.
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|Adj.||1.||gibbous - characteristic of or suffering from kyphosis, an abnormality of the vertebral column|
unfit - not in good physical or mental condition; out of condition; "fat and very unfit"; "certified as unfit for army service"; "drunk and unfit for service"
|2.||gibbous - (used of the moon) more than half full|
adj moon → Dreiviertel-