The ringer of the bells was called the Hunchback of Notre Dame because he had a gibbous lump on his back. If gibbous describes something that is bulging, but not completely round, then at what phase is the Moon described as gibbous?
The moon is said to be in the gibbous phase when it can be seen from Earth with more than half but not all of the apparent disk illuminated. This phase actually happens twice each month during the waxing gibbous phase and the waning gibbous phase.
