adjective \ˈji-bəs, ˈgi-\

Definition of GIBBOUS

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
:  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


adjective \ˈjib-əs, ˈgib-\   (Medical Dictionary)

Medical Definition of GIBBOUS

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


Next Word in the Dictionary: Gibbs free energy
Previous Word in the Dictionary: gibbosity
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