Main Entry: gib·bous

Pronunciation: \ˈji-bəs, ˈgi-\

Function: adjective

Etymology: Middle English, from Late Latin gibbosus humpbacked, from Latin gibbus hump

Date: 14th century

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