Definition of Zenith

1. Noun. The point above the observer that is directly opposite the nadir on the imaginary sphere against which celestial bodies appear to be projected.

Generic synonyms: Celestial Point
Group relationships: Celestial Sphere, Empyrean, Firmament, Heavens, Sphere, Vault Of Heaven, Welkin
Antonyms: Nadir
Derivative terms: Zenithal

Definition of Zenith

1. n. That point in the visible celestial hemisphere which is vertical to the spectator; the point of the heavens directly overhead; -- opposed to nadir.

2. n. That point in the visible celestial hemisphere which is vertical to the spectator; the point of the heavens directly overhead; -- opposed to nadir.

Definition of Zenith

1. Noun. (astronomy) The point in the sky vertically above a given position or observer; the point in the celestial sphere opposite the nadir. ¹

2. Noun. (astronomy) The highest point in the sky reached by a celestial body. ¹

3. Noun. Highest point or state; peak. ¹

¹ Source: wiktionary.com

Definition of Zenith

1. the highest point [n -S] : ZENITHAL [adj]

Medical Definition of Zenith

1. 1. That point in the visible celestial hemisphere which is vertical to the spectator; the point of the heavens directly overhead; opposed to nadir. "From morn To noon he fell, from noon to dewy eve, A summer's day; and with the setting sun Dropped from the zenith, like a falling star." (Milton) 2. Hence, figuratively, the point of culmination; the greatest height; the height of success or prosperity. "I find my zenith doth depend upon A most auspicious star." (Shak) "This dead of midnight is the noon of thought, And wisdom mounts her zenith with the stars." (Mrs. Barbauld) "It was during those civil troubles . . . This aspiring family reached the zenith." (Macaulay) Zenith distance. A telescope specially designed for determining the latitude by means of any two stars which pass the meridian about the same time, and at nearly equal distances from the zenith, but on opposite sides of it. It turns both on a vertical and a horizontal axis, is provided with a graduated vertical semicircle, and a level for setting it to a given zenith distance, and with a micrometer for measuring the difference of the zenith distances of the two stars. Origin: OE. Senyth, OF. Cenith, F. Zenith, Sp. Zenit, cenit, abbrev. Fr. Ar. Samt-urras way of the head, vertical place; samt way, path + al the + ras head. Cf. Azimuth. Source: Websters Dictionary (01 Mar 1998)

Lexicographical Neighbors of Zenith

zemstvos
zenaida
zenaidas
zenana
zenanas
zendik
zendiks
zendiq
zendiqs
zendo
zendos
zenick
zenik
zenith (current term)
zenithal
zeniths
zenographic
zenography
zenpai
zensho yusho
zenzenite
zenzic
zenzizenzic
zenzizenzizenzic
zenzizenzizenzizenzike
zeolite
zeolites
zeolitic

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