( n. )
The apparent arc described, above or below the horizon, by the sun or other celestial body. The diurnal arc is described during the daytime, the nocturnal arc during the night.
( n. )
The apparent arc described, above or below the horizon, by the sun or other celestial body. The diurnal arc is described during the daytime, the nocturnal arc during the night.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012