Astron., Navig.
the great circle of the celestial sphere, lying in the same plane as the earth's equator. Also called equator, equinoctial, equinoctial circle, equinoctial line .
[ 1870-75 ]
Astron., Navig.
the great circle of the celestial sphere, lying in the same plane as the earth's equator. Also called equator, equinoctial, equinoctial circle, equinoctial line .
[ 1870-75 ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012