( n. )
That point in the visible celestial hemisphere which is vertical to the spectator; the point of the heavens directly overhead; -- opposed to nadir.
( n. )
That point in the visible celestial hemisphere which is vertical to the spectator; the point of the heavens directly overhead; -- opposed to nadir.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012