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单词 horizon
释义
horizon
(once / 228 pages)
1n 2n 3n

When you look out your window and note the furthest point you can see––the line where the sky meets the earth––that edge is called the horizon. Horizon can also mean the edge of something in a figurative sense.
When you are thinking about your life, it can be difficult to get very far beyond where you are. Teenagers have a hard time imagining beyond the horizons of young adulthood. People expecting a baby often put much of their focus on infancy––having a child who can sit up or even walk is beyond the horizons of their thinking.
WORD FAMILY
horizon: horizons
USAGE EXAMPLES
Despite his stubborn refusal to be alarmist, Mass admits there’s climatological drama on our horizon.
Seattle Times(Jan 02, 2017)
During January, Venus will reach its peak height above the horizon, according to the Beckstrom Observatory.
BBC(Jan 02, 2017)
There are warning flags on Iowa’s fiscal horizon.
Washington Times(Jan 02, 2017)
1
1n the line at which the sky and Earth appear to meet
Syn|Hyper
apparent horizon, sensible horizon, skyline, visible horizon
line
a spatial location defined by a real or imaginary unidimensional extent
2n the great circle on the celestial sphere whose plane passes through the sensible horizon and the center of the Earth
Syn|Hyper
celestial horizon
great circle
a circular line on the surface of a sphere formed by intersecting it with a plane passing through the center
2
n the range of interest or activity that can be anticipated
It is beyond the horizon of present knowledge
Syn|Hyper
purview, view
ambit, compass, orbit, range, reach, scope
an area in which something acts or operates or has power or control: "the range of a supersonic jet"
3
n a specific layer or stratum of soil or subsoil in a vertical cross section of land
Exp|Hypo|Hyper
A horizon
the top layer of a soil profile; usually contains humus
B horizon
immediately below the A-horizon; contains deposits of organic matter leached from surface soils
C horizon
beneath the B-horizon and above the bedrock; consisting of weathered rock
soil horizon
a layer in a soil profile
geological horizon
a layer of rock with a particular composition (especially of fossils); for dating the stratum
stratum
one of several parallel layers of material arranged one on top of another (such as a layer of tissue or cells in an organism or a layer of sedimentary rock)
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