Gibbous /(?)/

Gib·bous

Gibbous

a.
  1. Swelling by a regular curve or surface; protuberant; convex; as, the moon is gibbous between the half-moon and the full moon.
    The bones will rise, and make a gibbous member.
    — Wiseman.
  2. Hunched; hump-backed. [Obs.]