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Section, Sectioning or Sectioned may refer to:


Arts, entertainment and media

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Section (music) In music, a section is a complete, but not independent, musical idea. Types of sections include the introduction or intro, exposition, development, recapitulation, verse, chorus or refrain, conclusion, coda or outro, fadeout, bridge or inte ...
, a complete, but not independent, musical idea *
Section (typography) In books and documents, a section is a subdivision, especially of a chapter. Sections are visually separated from each other with a section break, typically consisting of extra space between the sections, and sometimes also by a section headin ...
, a subdivision, especially of a chapter, in books and documents **
Section sign The section sign, §, is a typographical character for referencing individually numbered sections of a document; it is frequently used when citing sections of a legal code. It is also known as the section symbol, section mark, double-s, or ...
(§), typographical characters *
Section (bookbinding) In bookbinding, a section, gathering, or signature is a group of sheets folded in half, to be worked into the binding as a unit. The section is the basic building block of codex bindings. In Western bookbinding, sections are sewn through thei ...
, a group of sheets, folded in the middle, bound into the binding together *
The Section (band) The Section were a US instrumental rock/ jazz fusion band formed in the early 1970s by guitarist Danny Kortchmar, keyboardist Craig Doerge, bassist Leland Sklar, and drummer Russ Kunkel. Other musicians associated with the group include multi-in ...
, a 1970s American instrumental rock band * ''The Outpost'' (1995 film), also known as ''The Section'' * Section, an instrumental group within an
orchestra An orchestra (; ) is a large instrumental ensemble typical of classical music, which combines instruments from different families. There are typically four main sections of instruments: * bowed string instruments, such as the violin, viola, c ...
* "Section", a song by 2 Chainz from the 2016 album ''
ColleGrove ''ColleGrove'' is the third studio album by American hip hop recording artist 2 Chainz. It was released on March 4, 2016, by Def Jam Recordings. The album was originally a collaborative effort between him and fellow American rapper Lil Wayne, b ...
'' * "Sectioning", a ''Peep Show'' episode * David "Section" Mason, a fictional character in '' Call of Duty: Black Ops II''


Organisations

* Section (Alpine club) *
Section (military unit) A section is a military sub-subunit. It usually consists of between 6 and 20 personnel. NATO and US doctrine define a section as an organization "larger than a squad, but smaller than a platoon." As such, two or more sections usually make up an ar ...
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Section (Scouting) National Scouting and Guiding organisations are divided into different age groups in order to deliver the Scouting and Guiding programmes for a full range of youth. History Originally, there was only a single section for all members of the Scout ...


Science, technology and mathematics


Science

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Section (archaeology) In archaeology a section is a view in part of the archaeological sequence showing it in the vertical plane, as a cross section, and thereby illustrating its profile and stratigraphy. This may make it easier to view and interpret as it developed ...
, a view in part of the archaeological sequence showing it in the vertical plane *
Section (biology) In biology a section ( la, sectio) is a taxonomic rank that is applied differently in botany and zoology. In botany Within flora (plants), 'section' refers to a ''botanical'' rank below the genus, but above the species: * Domain > Kingdom > Div ...
, a taxonomic rank that is applied differently between botany and zoology **
Section (botany) In botany, a section ( la, sectio) is a taxonomic rank below the genus, but above the species. The subgenus, if present, is higher than the section, and the rank of series, if present, is below the section. Sections may in turn be divided into su ...
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Histological section Histology, also known as microscopic anatomy or microanatomy, is the branch of biology which studies the microscopic anatomy of biological tissues. Histology is the microscopic counterpart to gross anatomy, which looks at larger structures vis ...
, a thin slice of tissue used for microscopic examination, achieved by sectioning


Mathematics

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Section (category theory) In category theory, a branch of mathematics, a section is a right inverse of some morphism. Dually, a retraction is a left inverse of some morphism. In other words, if f: X\to Y and g: Y\to X are morphisms whose composition f \circ g: Y\to Y is ...
, a right inverse of some morphism **
Section (fiber bundle) In the mathematical field of topology, a section (or cross section) of a fiber bundle E is a continuous right inverse of the projection function \pi. In other words, if E is a fiber bundle over a base space, B: : \pi \colon E \to B then a se ...
, in topology ** Part of a
sheaf (mathematics) In mathematics, a sheaf is a tool for systematically tracking data (such as sets, abelian groups, rings) attached to the open sets of a topological space and defined locally with regard to them. For example, for each open set, the data could ...
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Section (group theory) In the mathematical fields of category theory and abstract algebra, a subquotient is a quotient object of a subobject. Subquotients are particularly important in abelian categories, and in group theory, where they are also known as sections, thoug ...
, a quotient object of a subobject


Other uses in science and technology

* , an
HTML5 HTML5 is a markup language used for structuring and presenting content on the World Wide Web. It is the fifth and final major HTML version that is a World Wide Web Consortium (W3C) recommendation. The current specification is known as the HTML ...
markup *
Sectioning (car) Chopping and channeling is a form of automobile customization in the "kustom kulture" and among hot rodders. The procedures are often combined, but can be performed separately. While chopping takes in only a car's pillars and windows, the more i ...
, a customization of hot rod cars


Surveying

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Section (United States land surveying) In U.S. land surveying under the Public Land Survey System (PLSS), a section is an area nominally , containing , with 36 sections making up one survey township on a rectangular grid. The legal description of a tract of land under the PLSS inc ...
, an area nominally one square mile * Section, an area of one square mile in
Dominion Land Survey The Dominion Land Survey (DLS; french: links=no, arpentage des terres fédérales, ATF) is the method used to divide most of Western Canada into one-square-mile (2.6 km2) sections for agricultural and other purposes. It is based on the layout ...
, Western Canada * Section, part of the
Alberta Township System The Alberta Township System (ATS) is a land surveying system used in the Canadian province of Alberta and other parts of western Canada. History and background In principle there is a mathematical basis for the Alberta Township System (ATS) variant ...


Other uses

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Section, Alabama Section is a town in Jackson County, Alabama, United States and is included in the Chattanooga-Cleveland-Dalton, TN-GA-AL Combined Statistical Area. As of the 2010 census, the population of the town was 770, an increase of one person (769) from ...
, a town in the United States *
Section (rail transport) In rail transport, a section could refer to: a portion of a train that may be operated independently and/or combined with other sections to operate as a single unit; or a portion of railway line designated for signalling or maintenance; or an inte ...
, a portion of railway line or a portion of a train *
Sectioning Involuntary commitment, civil commitment, or involuntary hospitalization/hospitalisation is a legal process through which an individual who is deemed by a qualified agent to have symptoms of severe mental disorder is detained in a psychiatric hos ...
, involuntary commitment for severe mental illness


See also

* * *
Cross section (disambiguation) Cross section may refer to: * Cross section (geometry) ** Cross-sectional views in architecture & engineering 3D *Cross section (geology) * Cross section (electronics) * Radar cross section, measure of detectability * Cross section (physics) **Abs ...
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Division (disambiguation) Division or divider may refer to: Mathematics *Division (mathematics), the inverse of multiplication *Division algorithm, a method for computing the result of mathematical division Military *Division (military), a formation typically consisting ...
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Part (disambiguation) Part, parts or PART may refer to: People *Armi Pärt (born 1991), Estonian handballer *Arvo Pärt (born 1935), Estonian classical composer *Brian Part (born 1962), American child actor *Dealtry Charles Part (1882–1961), sheriff (1926–1927) an ...
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Sectional (disambiguation) Sectional or Sectionals may refer to: * Sectionals, or sectional rehearsals, rehearsals for a single orchestral section * Sectional, or sectional couch, an item of furniture * "Sectionals" (''Glee''), a 2009 episode of the TV series ''Glee'' See ...
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Sector (disambiguation) Sector may refer to: Places * Sector, West Virginia, U.S. Geometry * Circular sector, the portion of a disc enclosed by two radii and a circular arc * Hyperbolic sector, a region enclosed by two radii and a hyperbolic arc * Spherical sector, a po ...
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Segment (disambiguation) Segment or segmentation may refer to: Biology *Segmentation (biology), the division of body plans into a series of repetitive segments ** Segmentation in the human nervous system *Internodal segment, the portion of a nerve fiber between two Nodes ...
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Caesarean section Caesarean section, also known as C-section or caesarean delivery, is the surgical procedure by which one or more babies are delivered through an incision in the mother's abdomen, often performed because vaginal delivery would put the baby or mo ...
, or C-section, the use of surgery to deliver babies {{disambiguation