gibbous C2 Topic:Science & Research US /ˈɡɪbəs/ UK /ˈɡɪbəs/ See IPA manual Freq #139194 Meanings 1 adj having more than half but less than all of the visible disk illuminated, especially of the moon A waxing gibbous moon rose above the trees before sunset. 2 adj curved or bulging outward; convex The vessel had a gibbous side that projected beyond its base. 3 adj humped or abnormally curved, especially in reference to the back The old medical illustration showed a gibbous curvature of the spine. Thesaurus Synonyms 1 adj · having more than half but... more-than-half-full 2 adj · curved or bulging outward;... bulgingconvexprotuberant 3 adj · humped or abnormally... humpbackedkyphotic More humped ↔ Opposites concavecrescent Word family Derived forms gibbosegibbositygibbouslygibbousness Related forms gibbuskyphosis Etymology From Middle English gibbous, from Latin gibbus ("hump, hunch"). The astronomical sense describes the moon or a planet as visibly bulging beyond a half disk while not yet full. Topics Science & Research External links Cambridge Dictionary Wiktionary Google Images # gibbous **Type:** Word **Level:** C2 **Part of speech:** adj **IPA (US):** /ˈɡɪbəs/ **IPA (UK):** /ˈɡɪbəs/ **Frequency rank:** 139194 ## Meanings 1. having more than half but less than all of the visible disk illuminated, especially of the moon 2. curved or bulging outward; convex 3. humped or abnormally curved, especially in reference to the back ## Examples - A waxing gibbous moon rose above the trees before sunset. - The vessel had a gibbous side that projected beyond its base. - The old medical illustration showed a gibbous curvature of the spine. ## Synonyms - bulging - convex - protuberant - humped ## Antonyms - concave - crescent ## Derived Forms - gibbose - gibbosity - gibbously - gibbousness ## Related Forms - gibbus - kyphosis ## Etymology From Middle English gibbous, from Latin gibbus ("hump, hunch"). The astronomical sense describes the moon or a planet as visibly bulging beyond a half disk while not yet full. ## Topics - Science & Research markdown