1) Time of the new moon 
Neomenia is a genus of solenogaster, and the only genus in its family. ...
period of the new moon
• (n.) The time of the new moon; the beginning of the month in the lunar calendar. • (n.) The time of the new moon; the beginning of the month in the lunar calendar.
Ne`o·me'ni·a noun [ New Latin , from Greek ...; ... new + 
Among the ancient Hebrews and ancient Greeks neomenia was the time of the new moon marking the beginning of the lunar month. The name was also given to a festival held at this time.
neomenia 1. The time of the new moon. 2. The beginning of the month in the lunar calendar.