Ground may refer to:
Geology
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Land
Land, also known as dry land, ground, or earth, is the solid terrestrial surface of the planet Earth that is not submerged by the ocean or other bodies of water. It makes up 29% of Earth's surface and includes the continents and various islan ...
, the surface of the Earth not covered by water
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Soil
Soil, also commonly referred to as earth or dirt, is a mixture of organic matter, minerals, gases, liquids, and organisms that together support life. Some scientific definitions distinguish ''dirt'' from ''soil'' by restricting the former ...
, a mixture of clay, sand and organic matter present on the surface of the Earth
Electricity
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Ground (electricity)
In electrical engineering, ground or earth is a reference point in an electrical circuit from which voltages are measured, a common return path for electric current, or a direct physical connection to the Earth.
Electrical circuits may be connec ...
, the reference point in an electrical circuit from which voltages are measured
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Earthing system, part of an electrical installation that connects with the Earth's conductive surface
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Ground and neutral
Ground and neutral are circuit conductors used in alternating current electrical systems. The ground circuit is connected to earth, and neutral circuit is usually connected to ground. As the neutral point of an electrical supply system is often ...
, closely related terms
Law
* Ground (often grounds), in
law
Law is a set of rules that are created and are enforceable by social or governmental institutions to regulate behavior,Robertson, ''Crimes against humanity'', 90. with its precise definition a matter of longstanding debate. It has been vari ...
, a rational motive or basis for a belief, conviction, or action taken, such as a legal action or argument:
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Grounds for divorce
Grounds for divorce are regulations specifying the circumstances under which a person will be granted a divorce. Adultery is the most common grounds for divorce. However, there are countries that view male adultery differently than female adultery ...
, regulations specifying the circumstances under which a person will be granted a divorce
Music
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''Ground'' (album), the second album by the Nels Cline Trio
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"Ground" (song), one of the songs in the debut album of the Filipino rock band
Rivermaya
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Ground bass
In music, an ostinato (; derived from Italian word for ''stubborn'', compare English ''obstinate'') is a motif or phrase that persistently repeats in the same musical voice, frequently in the same pitch. Well-known ostinato-based pieces includ ...
, in music, a bass part that continually repeats, while the melody and harmony over it change
* ''
The Ground'', a 2005 album by Norwegian jazz pianist Tord Gustavsen
Other
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Coffee grounds, ground up coffee beans
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Ground tissue
The ground tissue of plants includes all tissues that are neither dermal nor vascular. It can be divided into three types based on the nature of the cell walls.
# Parenchyma cells have thin primary walls and usually remain alive after they beco ...
, one of the three types of tissue systems in a plant
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Ground term
In mathematical logic, a ground term of a formal system is a term that does not contain any variables. Similarly, a ground formula is a formula that does not contain any variables.
In first-order logic with identity, the sentence Q(a) \lor P ...
, in symbolic logic, a term with no variables
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Ground (unit) A ground is a unit of area used in India approximately equal to . After metrication
Metrication or metrification is the act or process of converting to the metric system of measurement. All over the world, countries have transitioned from local ...
, a unit of area used in India
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Ground (Dzogchen)
In Dzogchen, the ground or base () is the primordial state. It is an essential component of the Dzogchen tradition for both the Bon tradition and the Nyingma school of Tibetan Buddhism. Knowledge of this ''ground'' is called '' rigpa''.
Explic ...
, the primordial state in Dzogchen
* Ground surface, often on metals, created by various
grinding operations
Grinding is a type of abrasive machining process which uses a grinding wheel as cutting tool.
A wide variety of machines are used for grinding, best classified as portable or stationary:
* Portable power tools such as angle grinders, die gr ...
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Ground (cricket)
In cricket, a ground is a location where cricket matches are played, comprising a cricket field, cricket pavilion and any associated buildings and amenities.
A batter's ground is the area behind the popping crease at their end of the pitch. ...
, where cricket games are played, and also part of the playing area.
See also
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Grounding (disambiguation)
Grounding or grounded may refer to:
Science and philosophy
* Grounding (metaphysics), a topic of wide philosophical interest
* Grounding (psychology), a strategy for coping with stress or other negative emotions
* Grounding in communication, t ...
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Grounded (disambiguation)
Grounding or grounded may refer to:
Science and philosophy
* Grounding (metaphysics), a topic of wide philosophical interest
* Grounding (psychology), a strategy for coping with stress or other negative emotions
* Grounding in communication, t ...
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Grounds (disambiguation)
Grounds is the plural of ground
Grounds may also refer to:
* Coffee grounds, granulated remains of coffee beans after grinding for coffee
* Grounds, in law, a rational motive or basis for a belief, conviction, or action taken, such as a legal a ...
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Earth (disambiguation)
Earth is a planet in the solar system, and the third planet from the sun. Earth is called The World in geopolitical contexts.
Earth may also refer to:
Elements
*Earth (classical element), one of the four Greek classical elements
* Earth (Wu Xing ...
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Grind (disambiguation)
Grind is the cross-sectional shape of a blade.
Grind, grinds, or grinding may also refer to:
Grinding action
* Grinding (abrasive cutting), a method of crafting
* Grinding (dance), suggestive club dancing
* Grinding (video gaming), repetitive an ...
,
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Ground level (disambiguation)
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Ground of Being (disambiguation)
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