- Astronomy. (of a heavenly body) convex at both edges, as the moon when more than half full.
Origin of gibbous
Related Words for gibbousconvex, jutting, beetling, protruding, bent, leaning, bulging, awry, crooked, unbalanced, unequal, disproportional, gibbous, unsymmetrical, protuberant, conspicuous, prominent, proud, salient, prognathous
Examples from the Web for gibbous
Historical Examples of gibbous
Steep and gibbous behind, becoming at length smooth and equal.The Mushroom, Edible and Otherwise
M. E. Hard
The night was clear, and a gibbous moon was high in the sky.Camp-fire and Wigwam
Edward Sylvester Ellis
The moon was gibbous in its approach to the full when the boat left Vicksburg.The Last of the Flatboats
George Cary Eggleston
The esculent variety, in Europe, is the common green or gibbous frog, the Rana esculenta of Linnus.
Over the top of the great ranges a gibbous moon rose slowly.Gold
- (of the moon or a planet) more than half but less than fully illuminated
- having a hunchback; hunchbacked
Word Origin for gibbous
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.
- 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.