gibbous

adjective3

1. •
   Curved or bulged outward.

   • In fact, what these gibbous human shapes specially represented was ready money—money insistently ready [...] — 1886
2. •
   Having more than half (but not the whole) of its disc illuminated.

   • The moving moon, full, gibbous, or crescent-shaped, shone at last for the navigators of the eighteenth century like a luminous hand on the clock of heaven. — 1995
3. •
   Humpbacked.

   • A pointed flinty rock, all bare and black, Grew gibbous from behind the mountain's back — 1697