Dictionary

gibbous

gibbous

adjective gib·bous \ˈji-bəs, ˈgi-\

Definition of GIBBOUS

1
a :  marked by convexity or swelling
b of the moon or a planet :  seen with more than half but not all of the apparent disk illuminated
2
:  having a hump :  humpbacked

Origin of GIBBOUS

Middle English, from Late Latin gibbosus humpbacked, from Latin gibbus hump
First Known Use: 14th century

Other Astronomy Terms

nadir, nebulous, penumbra, retrograde, sidereal, syzygy, wane, wax, zenith

gibbous

adjective gib·bous \ˈjib-əs, ˈgib-\   (Medical Dictionary)

Medical Definition of GIBBOUS

1
:  marked by swelling or convexity especially on one side :  protuberant
2
:  having a hump :  humpbacked

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