Field may refer to:

Expanses of open ground

Field (agriculture) In agriculture, a field is an area of land, enclosed or otherwise, used for agricultural purposes such as cultivating crops or as a paddock or other enclosure for livestock. A field may also be an area left to lie fallow or as arable land. Many ...

, an area of land used for agricultural purposes * Airfield, an

aerodrome An aerodrome, airfield, or airstrip is a location from which aircraft flight operations take place, regardless of whether they involve air cargo, passengers, or neither, and regardless of whether it is for public or private use. Aerodromes inc ...

that lacks the infrastructure of an airport *

Battlefield A battlefield, battleground, or field of battle is the location of a present or historic battle involving ground warfare. It is commonly understood to be limited to the point of contact between opposing forces, though battles may involve troop ...

Lawn A lawn () is an area of soil-covered land planted with Poaceae, grasses and other durable plants such as clover lawn, clover which are maintained at a short height with a lawn mower (or sometimes grazing animals) and used for aesthetic an ...

, an area of mowed grass *

Meadow A meadow ( ) is an open habitat or field, vegetated by grasses, herbs, and other non- woody plants. Trees or shrubs may sparsely populate meadows, as long as they maintain an open character. Meadows can occur naturally under favourable con ...

, a grassland that is either natural or allowed to grow unmowed and ungrazed *

Playing field Play is a range of Motivation#Intrinsic and extrinsic, intrinsically motivated activities done for recreation. Play is commonly associated with children and juvenile-level activities, but may be engaged in at any life stage, and among other high ...

, used for sports or games

Arts and media

* In decorative art, the main area of a decorated zone, often contained within a border, often the background for motifs **

Field (heraldry) In heraldry, the background of the shield is called the ''field''. The field is usually composed of one or more tinctures (colours or metals) or furs. The field may be divided or may consist of a variegated pattern. In rare modern cases, th ...

, the background of a shield ** In

flag terminology Flag terminology is the nomenclature, or system of terms, used in vexillology, the study of flags, to describe precisely the parts, patterns, and other attributes of flags and their display. Flag types ...

, the background of a flag * ''FIELD'' (magazine), a literary magazine published by Oberlin College in Oberlin, Ohio * ''Field'' (sculpture), by Anthony Gormley

Organizations

* Field department, the division of a political campaign tasked with organizing local volunteers and directly contacting voters *

Field Enterprises Field Enterprises, Inc. was a private holding company that operated from the 1940s to the 1980s, founded by Marshall Field III and others, whose main assets were the '' Chicago Sun'' and '' Parade'' magazine. For various periods of time, Field En ...

, a defunct private holding company **

Field Communications Field Communications was an American broadcast media company and a wholly owned division of Field Enterprises, which owned the ''Chicago Sun-Times'' and the ''Chicago Daily News''. Based in Chicago, Illinois, the company had owned UHF indepen ...

, a division of Field Enterprises *

Field Museum of Natural History The Field Museum of Natural History (FMNH), also known as The Field Museum, is a natural history museum in Chicago, Illinois, and is one of the largest such museums in the world. The museum is popular for the size and quality of its educationa ...

, in Chicago

People

* Field (surname) * Field Cate (born 1997), American child actor

Places

Field, British Columbia Field is an unincorporated community of approximately 169 people located in the Kicking Horse River valley of southeastern British Columbia, Canada, within the confines of Yoho National Park. At an elevation of , it is west of Lake Louise a ...

, Canada * Field, Kentucky, United States * Field, Minneapolis, Minnesota, United States *

Field, Ontario Field is a community in Nipissing District, Ontario, located in the municipality of West Nipissing. The community is located on Highway 64, approximately 20 kilometres north of Sturgeon Falls. The community was initially built on logging and far ...

, Canada * Field, Staffordshire, England, United Kingdom *

Field, South Australia __NOTOC__ Field is a locality in the Australian state of South Australia located in the state’s south-east about south-east of the state capital of Adelaide Adelaide ( , ; ) is the list of Australian capital cities, capital and most po ...

Field Hill Field Hill is a steep portion of the mainline of the Canadian Pacific Kansas City located near Field, British Columbia. Field was created solely to accommodate the Canadian Pacific Railway's need for additional locomotives to be added to trains ...

, British Columbia, Canada *

Field Island Field Island is a Baffin Island offshore island located in the Arctic Archipelago in the territory of Nunavut. The island lies in Frobisher Bay, west of Waddell Bay, and southeast of Opera Glass Cape on the Hall Peninsula. Islands in the imme ...

, Nunavut, Canada *

Mount Field (disambiguation) Mount Field may refer to: * Mount Field (Antarctica) * Mount Field (Tasmania), in Australia ** Mount Field National Park, in Australia * Mount Field (British Columbia), in Canada * Mount Field (cricket ground), in Faversham, England * Mount F ...

, mountains in Canada, the United States, Australia and Antarctica

Science, technology, and mathematics

Biology

Morphogenetic field In the developmental biology of the early twentieth century, a morphogenetic field is a research hypothesis and a discrete region of cells in an embryo. The term ''morphogenetic field'' conceptualizes the scientific experimental finding that ...

, a discrete region of cells in an embryo

Computing

Field (computer science) In data hierarchy, a field (data field) is a Variable (computer science), variable in a record (computer science), record. A record, also known as a data structure, allows logically related data to be identified by a single name. Identifying relate ...

, a smaller piece of data from a larger collection (e.g., database fields) *

Column (database) In a relational database, a column is a set of data values of a particular type, one value for each row of a table.The term "column" also has equivalent applications in other, more generic contexts. See e.g., Flat file database, Table (inf ...

, sometimes referred to as 'field', with various meanings *

Field-programmability An electronic device or embedded system is said to be field-programmable or in-place programmable if its firmware (stored in non-volatile memory, such as ROM) can be modified "in the field", without disassembling the device or returning it to ...

, an electronic device's capability of being reprogrammed with new logic

Geology

Field (mineral deposit) A field is a mineral deposit containing a metal or other valuable resources in a cost-competitive concentration. It is usually used in the context of a mineral deposit from which it is convenient to extract its metallic component. The deposits a ...

, a mineral deposit containing valuable resources in a cost-competitive concentration *

Polje A polje, also called karst polje or karst field, is a large flat plain found in karstic geological regions of the world, with areas usually in the range of 5–400 km2 (2–154 sq mi). The name derives from the Slavic languages, ...

or karst field, a characteristic landform in karst topography

Mathematics

Field (mathematics) In mathematics, a field is a set (mathematics), set on which addition, subtraction, multiplication, and division (mathematics), division are defined and behave as the corresponding operations on rational number, rational and real numbers. A fie ...

, type of algebraic structure **

Number field In mathematics, an algebraic number field (or simply number field) is an extension field K of the field of rational numbers such that the field extension K / \mathbb has finite degree (and hence is an algebraic field extension). Thus K is a ...

, specific type of the above algebraic structure *

Scalar field In mathematics and physics, a scalar field is a function associating a single number to each point in a region of space – possibly physical space. The scalar may either be a pure mathematical number ( dimensionless) or a scalar physical ...

, assignment of a scalar to each point in a mathematical space *

Spinor field In differential geometry, given a spin structure on an n-dimensional orientable Riemannian manifold (M, g),\, one defines the spinor bundle to be the complex vector bundle \pi_\colon\to M\, associated to the corresponding principal bundle \pi_\co ...

, assignment of a spinor to each point in a mathematical space *

Tensor field In mathematics and physics, a tensor field is a function assigning a tensor to each point of a region of a mathematical space (typically a Euclidean space or manifold) or of the physical space. Tensor fields are used in differential geometry, ...

, assignment of a tensor to each point in a mathematical space *

Vector field In vector calculus and physics, a vector field is an assignment of a vector to each point in a space, most commonly Euclidean space \mathbb^n. A vector field on a plane can be visualized as a collection of arrows with given magnitudes and dire ...

, assignment of a vector to each point in a mathematical space *

Field of sets In mathematics, a field of sets is a mathematical structure consisting of a pair ( X, \mathcal ) consisting of a set X and a family \mathcal of subsets of X called an algebra over X that contains the empty set as an element, and is closed under t ...

, a mathematical structure of sets in an abstract space * Field of a

binary relation In mathematics, a binary relation associates some elements of one Set (mathematics), set called the ''domain'' with some elements of another set called the ''codomain''. Precisely, a binary relation over sets X and Y is a set of ordered pairs ...

, union of its domain and its range

Optics

Field of view The field of view (FOV) is the angle, angular extent of the observable world that is visual perception, seen at any given moment. In the case of optical instruments or sensors, it is a solid angle through which a detector is sensitive to elec ...

, the area of a view imaged by a lens **

Visual field The visual field is "that portion of space in which objects are visible at the same moment during steady fixation of the gaze in one direction"; in ophthalmology and neurology the emphasis is mostly on the structure inside the visual field and it i ...

, the part of the field of view which can be perceived by the eye's retina **

Depth of field The depth of field (DOF) is the distance between the nearest and the farthest objects that are in acceptably sharp focus (optics), focus in an image captured with a camera. See also the closely related depth of focus. Factors affecting depth ...

, the distance from before to beyond the subject that appears to be in focus (and likewise, field, in the context of depth, is the portion of a scene for which objects within its range are or would be in focus)

Physics

Field (physics) In science, a field is a physical quantity, represented by a scalar (mathematics), scalar, vector (mathematics and physics), vector, or tensor, that has a value for each Point (geometry), point in Spacetime, space and time. An example of a scala ...

, a mathematical construct for analysis of remote effects **

Electric field An electric field (sometimes called E-field) is a field (physics), physical field that surrounds electrically charged particles such as electrons. In classical electromagnetism, the electric field of a single charge (or group of charges) descri ...

, term in physics to describe the energy that surrounds electrically charged particles **

Magnetic field A magnetic field (sometimes called B-field) is a physical field that describes the magnetic influence on moving electric charges, electric currents, and magnetic materials. A moving charge in a magnetic field experiences a force perpendicular ...

, force produced by moving electric charges **

Electromagnetic field An electromagnetic field (also EM field) is a physical field, varying in space and time, that represents the electric and magnetic influences generated by and acting upon electric charges. The field at any point in space and time can be regarde ...

, combination of an electric field and magnetic field **

Gravitational field In physics, a gravitational field or gravitational acceleration field is a vector field used to explain the influences that a body extends into the space around itself. A gravitational field is used to explain gravitational phenomena, such as ...

, a representation of the combined effects of remote masses on a test particle at each point

Sociology

Field (Bourdieu) In sociology, field theory examines how individuals construct social fields, and how they are affected by such fields. Social fields are Social environment, environments in which competition between individuals and between Social groups, groups ta ...

, a sociological term coined by Pierre Bourdieu to describe the system of objective relations constituted by various species of capital *

Sexual field {{inline citations, date=April 2013 A sexual field is an arena of social life wherein individuals seek intimate partners and vie for sexual status. Sexual fields emerge "when a subset of actors with potential romantic or sexual interest orient the ...

, the systems of objective relations within collective sexual life

Other uses in science and technology

* Field (geography), a spatially dependent variable *

Field (video) In video, a field is one of the many still images displayed sequentially to create the impression of motion on the screen. Normally, two fields comprise one video frame in what is known as 2:1 interlacing. 3:1, 4:1 and 5:1 interlacing also exist ...

, one half of a frame in an interlaced display * Field coil, of an electric motor or generator *

Field experiment Field experiments are experiments carried out outside of laboratory settings. They randomly assign subjects (or other sampling units) to either treatment or control groups to test claims of causal relationships. Random assignment helps establ ...

Field magnet Field magnet refers to a magnet used to produce a magnetic field in a device. It may be a permanent magnet or an electromagnet. When the field magnet is an electromagnet, it is referred to as a field coil. Although the term usually refers to magne ...

, a magnet used to produce a magnetic field *

Field research Field research, field studies, or fieldwork is the collection of raw data outside a laboratory, library, or workplace setting. The approaches and methods used in field research vary across disciplines. For example, biologists who conduct fi ...

or fieldwork, the collection of information outside a laboratory, library or workplace setting * Field of

heliostat A heliostat () is a device that reflects sunlight toward a target, turning to compensate for the Sun's apparent motion. The reflector is usually a plane mirror. The target may be a physical object, distant from the heliostat, or a direct ...

s, an assembly of heliostats acting together

Other uses

Field of study An academic discipline or academic field is a subdivision of knowledge that is taught and researched at the college or university level. Disciplines are defined (in part) and recognized by the academic journals in which research is published, a ...

, a subdivision of an academic discipline * Field of use, permissible operation by the licensee of a patent *

Track and field Track and field (or athletics in British English) is a sport that includes Competition#Sports, athletic contests based on running, jumping, and throwing skills. The name used in North America is derived from where the sport takes place, a ru ...

, a group of sports