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 bof the moon or a planet : seen with more than half but not all of the apparent disk illuminated2: having a hump : humpbacked