The road disappears into the horizon.
- An example of horizon is the area where the sky and earth appear to merge into one sea of blue.
- An example of horizon is a person who has never travelled outside of his own town.
The definition of horizon is the area where the earth and sky look as if they come together or how far your interests and knowledge stretch.
- the distant line where the sky appears to meet the surface of the earth
- a similar line observed from the surface of the moon, etc.
- the limit or extent of one's outlook, experience, interest, knowledge, etc.: travel broadens one's horizons
- Archaeol. an archaeological level or an area of culture as indicated by surviving artifacts
- Astron. the great circle on the celestial sphere perpendicular to the line from the observer's zenith to the nadir
- Geol. a layer of soil or rock identified by physical characteristics, particular fossils, etc.
Origin of horizonaltered (after L) ; from Middle English orizont ; from Old French orizonte ; from Classical Latin horizon ; from Classical Greek horiz?n (kyklos), the bounding (circle), horizon ; from present participle of horizein, to bound, limit ; from horos, boundary, limit, akin to Classical Latin urvus, city boundary, origin, originally , furrow around city
on the horizon
in the foreseeable future; impending, looming, destined, etc.
- The apparent intersection of the earth and sky as seen by an observer. Also called apparent horizon.
- Astronomy a. See sensible horizon.b. See celestial horizon.c. The limit or edge of the observable universe.
- The range of one's knowledge, experience, or interest.
- Geology a. A specific position in a column of rock layers, usually designated by the occurrence of one or more distinctive fossils or by a distinctive sediment bed, that is used in stratigraphy.b. A layer of soil that can be distinguished from adjacent layers of soil and that is characterized by a certain color, texture, structure or chemical composition.
- Archaeology A period during which the influence of a specified culture spread rapidly over a defined area: artifacts associated with the Olmec horizon in Mesoamerica.
Origin of horizonMiddle English orizon, from Old French, from Latin horiz&omacron;n, from Greek horiz&omacron;n (kuklos), limiting (circle), horizon, present participle of horizein, to limit, from horos, boundary.
- The horizontal line that appears to separate the Earth from the sky.
- A tall building was visible on the horizon.
- The range or limit of one's knowledge, experience or interest.
- Some students take a gap year after finishing high school to broaden their horizons.
- (geology) A specific layer of soil or strata
- (archaeology, US) A cultural sub-period or level within a more encompassing time period.