You searched for: “lunation”
lunation
1. The time from one new moon to the next, constituting a lunar month (29.5 days).
2. The time of the full moon.
This entry is located in the following units: -ation, -ization (-iz[e] + -ation); -isation (British spelling variation) (page 60) luna-, luni-, lun-, lunu- (page 3)