■ noun
1》 Physics a phase difference expressed as an angle, 360 degrees corresponding to one complete cycle.
2》 Astronomy the angle between the lines joining a given planet to the sun and to the earth.
■ noun
1》 Physics a phase difference expressed as an angle, 360 degrees corresponding to one complete cycle.
2》 Astronomy the angle between the lines joining a given planet to the sun and to the earth.
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004