Section, Sectioning or Sectioned may refer to:

Arts, entertainment and media

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), a subdivision, especially of a chapter, in books and documents ** Section sign (§), typographical characters * Section (bookbinding), a group of sheets, folded in the middle, bound into the binding together * The Section (band), a 1970s American instrumental rock band * ''The Outpost'' (1995 film), also known as ''The Section'' * Section, an instrumental group within an orchestra * "Section", a song by 2 Chainz from the 2016 album '' ColleGrove'' * "Sectioning", a ''Peep Show'' episode * David "Section" Mason, a fictional character in '' Call of Duty: Black Ops II''

Organisations

Section (Alpine club) The section (german: Sektion) of an Alpine club (or that of any such Alpine society or association) is an independent club or society that, together with the other sections, forms the main organisation ("Alpine club"). Membership of an Alpine club ...

* Section (military unit) * Section (Scouting)

Science, technology and mathematics

Science

* Section (archaeology), a view in part of the archaeological sequence showing it in the vertical plane * Section (biology), 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 ...

* Histological section, a thin slice of tissue used for microscopic examination, achieved by sectioning

Mathematics

* Section (category theory), 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 ...

* Section (group theory), a quotient object of a subobject

Other uses in science and technology

* , an HTML5 markup * Sectioning (car), a customization of hot rod cars

Surveying

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, Western Canada * Section, part of the Alberta Township System

Other uses

* Section, Alabama, a town in the United States * Section (rail transport), a portion of railway line or a portion of a train * Sectioning, involuntary commitment for severe mental illness