gibbous

/ˈɡɪbəs/
adjective
  1. (of the moon or a planet) having the illuminated part greater than a semicircle and less than a full circle.
    • Through the telescope, the gibbous shape of Venus was clearly visible.
    • We could see the gibbous moon shining brightly in the night sky.
    • The gibbous phase of the moon occurs between the first quarter and the full moon.
  2. Having a hump or rounded protuberance; convex or bulging.
    • The sculptor carved a gibbous form into the stone.
    • The old tree had a gibbous knot on its trunk.
    • The gibbous shape of the hill made it look like a sleeping giant.
Antonyms
What does "gibbous" mean? | whatsthatwordmean | whatsthatwordmean