Function: noun
Date: 1559
: a great circle of the celestial sphere whose plane is perpendicular to that of the horizon ― see AZIMUTH illustration
Function: noun
Date: 1559
: a great circle of the celestial sphere whose plane is perpendicular to that of the horizon ― see AZIMUTH illustration
Merriam Webster Collegiate English Dictionary. Merriam Webster - Энциклопедический словарь английского языка. 2012