horizon
6
7.5
- noun
- /həˈraɪzən/
- Specialized
:
horizonte del suelo
- In reality, however, field soils are inherently heterogeneous and usually consist of distinct layers or horizons of relatively homogeneous materials.
- soil horizons
- time horizon
- petrocalcic horizons
Examples
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The farmer examined the soil profile and identified a rich, dark horizon where the nutrient content was highest.
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In this field, each horizon provides distinct characteristics that affect crop growth and soil health.
-
I want you to find the artificial horizon on the instrument panel.
-
Just in time, too: a bank of dark stratus clouds began to sweep in from the southern horizon.
Academic text (2011) -
How little she had imagined before now, how slender her horizons had been.
Fiction book (1999) -
Geologists often study the different horizons in the strata to understand the history of the land.
Synonyms
1
5.4
A layer of soil under the topsoil and above the rock that has less plant material and more minerals
A layer of earth that is different from the layers above and below it
A soil layer under the topsoil that holds minerals and bits of dead plants
A layer of soil below the topsoil and above the rock under the ground
The top layer of soil that contains dark, rich plant material and where most roots grow
A soil layer under the B-horizon and above bedrock made mostly of broken rock with few plant roots
Idioms
Compounds
- Specialized
12
9.9
A boundary around a black hole that nothing can escape, not even light
- Specialized
1
5.7
An instrument in a plane that shows whether it is level or tilted
- Specialized
A soil layer below the top layer that holds minerals and dead plant material carried down
- Specialized
A soil layer below the B layer and above bedrock made of partly broken rock with little plant material
- Specialized
An imaginary circle in the sky where the ground seems to meet the sky from where you are
- Specialized
A soil layer under the B-horizon and above bedrock made mostly of broken rock with few plant roots
- Specialized
The top layer of soil that contains dark, rich plant material and where most roots grow
- Specialized
A soil layer under the topsoil that holds minerals and bits of dead plants
- Specialized
A layer of rock that you can identify by its minerals or fossils and use to find its age
- Specialized
An aircraft instrument that shows the plane's angle to the horizon using a spinning device
How Thick
Surface Forms
Etymology
Horizon is also used for a soil layer because horos means 'boundary' and each soil horizon is a clear 'boundary' between different kinds of soil. So soil scientists call each distinct layer a horizon because it marks a change in the ground.