nightside

night side |ˈnītˌsīd ˈnaɪtsaɪd | ▶noun 1 Astronomy the side of a planet or moon that is facing away from the sun and is therefore in darkness. 2 the world at night; activities that take place during the night: nightside was the province of the professional criminals.

nightside

night |side ▶noun 1 the side of a planet or moon facing away from the sun and therefore in darkness. 2 [ mass noun ] chiefly US activities that take place during the night.