the line or circle that forms the apparent boundary between earth and sky.
Astronomy.
the small circle of the celestial sphere whose plane is tangent to the earth at the position of a given observer, or the plane of such a circle (sensible horizon ).
Also called rational horizon .the great circle of the celestial sphere whose plane passes through the center of the earth and is parallel to the sensible horizon of a given position, or the plane of such a circle (celestial horizon ).
the limit or range of perception, knowledge, or the like.
Usually ho·ri·zons . the scope of a person's interest, education, understanding, etc.: His horizons were narrow.
Geology. a thin, distinctive stratum useful for stratigraphic correlation.
Also called soil ho·ri·zon . any of the series of distinctive layers found in a vertical cross section of any well-developed soil.
Origin of horizon
First recorded in 1540–50; from Latin horizōn, from Greek horízōn (kýklos) “bounding (circle),” equivalent to horíz(ein) “to bound, limit” + -ōn present participle suffix (nominative singular); replacing Middle English orizonte, from Middle French, from Latin horizontem, accusative of horizōn
SYNONYMS FOR horizon
4 world, perspective, domain, viewpoint.
SEE SYNONYMS FOR horizon ON THESAURUS.COM
Words nearby horizon
Horgan, hori, horiatiki, hor. interm., Horite, horizon, Horizon Club, horizon distance, horizonless, horizontal, horizontal bar
Others have linked the animal carvings at the site to specific constellations, proposing that a scorpion depicted underground might represent Scorpio below the horizon.
An Ancient Site with Human Skulls on Display - Issue 89: The Dark Side|Jo Marchant|September 2, 2020|Nautilus
The post While cut media company pay might be returning soon, confidence in the ad marketplace not on the horizon appeared first on Digiday.
While cut media company pay might be returning soon, confidence in the ad marketplace not on the horizon|Max Willens|September 2, 2020|Digiday
Always look to broaden your horizon, as new customers await your amazing products!
How to use in-market audiences for better search campaigns|Harikrishna Kundariya|August 18, 2020|Search Engine Watch
Brands need to be developing the strategies and at least have these issues on the horizon.
SEO in the second half of 2020: Five search opportunities to act on now|Jim Yu|August 17, 2020|Search Engine Watch
With stay-at-home orders on the horizon, “our business just dried up immediately,” he says.
Unmade in America|Tate Ryan-Mosley|August 14, 2020|MIT Technology Review
But without any peace talks on the horizon, everyone is now left to their own devices.
In the Middle East, the Two-State Solution Is Dead|Dean Obeidallah|January 2, 2015|DAILY BEAST
They can hear the sound of his boat's motor, growing louder as it comes over the horizon.
Alfred Hitchcock’s Fade to Black: The Great Director’s Final Days|David Freeman|December 13, 2014|DAILY BEAST
Ebah, speaking from his home in the camp, said suggestively, “There are signs of a big thing on the horizon.”
Intifada 3.0: Growing Unrest and a Plot to Kill an Israeli Minister|Creede Newton|November 21, 2014|DAILY BEAST
But with the 2016 presidential season on the horizon, the Texas firebrand has subtly changed his tune over the last six months.
Ted Cruz Quits Screwing With the GOP|Patricia Murphy|October 16, 2014|DAILY BEAST
As F-16s roared from one end of the horizon to the other, they dipped to bomb a grassland strip.
Shocked by Ukraine Violence, NATO Prepares to Face Down Putin|Leo Cendrowicz|October 12, 2014|DAILY BEAST
When Mossamedes lifted, two masts and the top of a funnel cut the horizon.
Kit Musgrave's Luck|Harold Bindloss
Morey had been scanning the horizon with a pair of powerful binoculars.
Islands of Space|John W Campbell
There are also many constellations in the southern hemisphere which never appear above our horizon.
Young Folks' Library, Volume XI (of 20)|Various
It was midday, then, on the tropic seas, and the horizon was closing in with clouds as of blood and vapours of stifling heat.
The Manxman|Hall Caine
The hills that surround Florence were the boundary of their horizon.
The Red Lily, Complete|Anatole France
British Dictionary definitions for horizon
horizon
/ (həˈraɪzən) /
noun
Also called: visible horizon, apparent horizonthe apparent line that divides the earth and the sky
astronomy
Also called: sensible horizonthe circular intersection with the celestial sphere of the plane tangential to the earth at the position of the observer
Also called: celestial horizonthe great circle on the celestial sphere, the plane of which passes through the centre of the earth and is parallel to the sensible horizon
the range or limit of scope, interest, knowledge, etc
a thin layer of rock within a stratum that has a distinct composition, esp of fossils, by which the stratum may be dated
a layer in a soil profile having particular characteristicsSee A horizon, B horizon, C horizon
on the horizonlikely or about to happen or appear
Derived forms of horizon
horizonless, adjective
Word Origin for horizon
C14: from Latin, from Greek horizōn kuklos limiting circle, from horizein to limit, from horos limit
prospect, scope, boundary, perspective, purview, vista, realm, ken, stretch, reach, sphere, range, limit, compass, border, field of vision
Scientific definitions for horizon
horizon
[ hə-rī′zən ]
The apparent intersection of the Earth and sky as seen by an observer. Also called apparent horizon
See celestial horizon.
See sensible horizon.
Geology
A specific position in a stratigraphic column, such as the location of one or more fossils, that serves to identify the stratum with a particular period.
A specific layer of soil or subsoil in a vertical cross-section of land.
ArchaeologyA period during which the influence of a particular culture spread rapidly over a defined area.