Definitions for a horizon
a hori·zon

Princeton's WordNetRate this definition:0.0 / 0 votes

1. A-horizon, A horizonnoun

   the top layer of a soil profile; usually contains humus

WikipediaRate this definition:0.0 / 0 votes

1. a horizon

   A soil horizon is a layer parallel to the soil surface whose physical, chemical and biological characteristics differ from the layers above and beneath. Horizons are defined in many cases by obvious physical features, mainly colour and texture. These may be described both in absolute terms (particle size distribution for texture, for instance) and in terms relative to the surrounding material, i.e. 'coarser' or 'sandier' than the horizons above and below. The identified horizons are indicated with symbols, which are mostly used in a hierarchical way. Master horizons (main horizons) are indicated by capital letters. Suffixes, in form of lowercase letters and figures, further differentiate the master horizons. There are many different systems of horizon symbols in the world. No one system is more correct—as artificial constructs, their utility lies in their ability to accurately describe local conditions in a consistent manner. Due to the different definitions of the horizon symbols, the systems cannot be mixed. In most soil classification systems, horizons are used to define soil types. The German system uses entire horizon sequences for definition. Other systems pick out certain horizons, the "diagnostic horizons", for the definition; examples are the World Reference Base for Soil Resources (WRB), the USDA soil taxonomy and the Australian Soil Classification. Diagnostic horizons are usually indicated with names, e.g. the "cambic horizon" or the "spodic horizon". The WRB lists 40 diagnostic horizons. In addition to these diagnostic horizons, some other soil characteristics may be needed to define a soil type. Some soils do not have a clear development of horizons. A soil horizon is a result of soil-forming processes (pedogenesis). Layers that have not undergone such processes may be simply called "layers".

ChatGPTRate this definition:0.0 / 0 votes

1. a horizon

   A horizon is the line where the sky and the earth appear to meet. It is the visual boundary of a person's perception when looking at a landscape or any vast space. In a broader context, the term can also refer to the limits of one's knowledge, understanding, or experience.

Matched Categories

1. • Soil Horizon

How to pronounce a horizon?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say a horizon in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of a horizon in Chaldean Numerology is: 8

2. Pythagorean Numerology

   The numerical value of a horizon in Pythagorean Numerology is: 7

Examples of a horizon in a Sentence

1. Shin Bet chief Yoram Cohen:

   Israeli preventive operations, a relatively stable economy, the public's desire to preserve personal prosperity - all of these and other factors significantly and effectively counter-act destabilizing elements like the absence of a diplomatic horizon, international triggers or Hamas efforts.

2. Diane Hoskins:

   Gutting the far too few offshore drilling safeguards that were established in the wake of the BP Deepwater Horizon disaster is reckless and wrong.

3. Nathan Gonzales:

   But if Rob Portman’s back in trouble, Republicans have more Trump problems on the horizon.

4. Boris Johnson:

   Let us lift our eyes to the horizon and take a once in a lifetime opportunity. Ignore the scaremongers, we are bigger, better and greater than they pretend.

5. Wilson Rosa:

   Considering our investment horizon, the scenario is very attractive.

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=a horizon
2. ^ Wikipedia
   https://en.wikipedia.org/wiki/A_Horizon
3. ^ ChatGPT
   https://chat.openai.com