section

noun sections

1. A cutting; a part cut out from the rest of something.

   Similar: cutting, slice

2. A part, piece, subdivision of anything. Seeing the British establishment struggle with the financial sector is like watching an alcoholic […]. Until 2008 there was denial over what finance had become. […] But the scandals kept coming, and so we entered stage three – what therapists call "bargaining". A broad section of the political class
3. A group of instruments in an orchestra. The horn section is the group of symphonic musicians who play the French horn.
4. A part of a document, especially a major part; often notated with §.
5. An act or instance of cutting.
6. A cross-section (image that shows an object as if cut along a plane). Japan and China also produced Noah's arks, where Noah was known as Fohi. They were of wood and beautifully decorated, the animals being bright in color and usually flat in section and fixed to flat stands.
7. A cross-section perpendicular the longitudinal axis of an aircraft in flight.
8. A function that generalizes the notion of the graph of a function; formally, a continuous right inverse to the projection map of a fiber bundle.
9. A right inverse of a morphism in some category

   Similar: split monomorphism

10. An object which is defined by analogy with sections of fiber bundles but in a more general setting (that of sheaves). Formally, an element of the image of an open set under the action of a (pre-)sheaf.
11. An incision or the act of making an incision.
12. abbreviation, colloquial, ellipsis Ellipsis of Caesarean section They had planned to go into my section scar but the surgeon didnʼt think he could see well enough.
13. thin section, a thin slice of material prepared as a specimen for research.
14. A taxonomic rank below the genus (and subgenus if present), but above the species.
15. An informal taxonomic rank below the order ranks and above the family ranks.
16. A group of 10-15 soldiers led by a non-commissioned officer and forming part of a platoon.
17. New Zealand A piece of residential land; a plot.
18. Canada, US Synonym of square mile, a unit of land area, especially in the contexts of Canadian surveys and American land grants and legal property descriptions.

    Similar: square mile

19. The symbol §, denoting a section of a document.
20. A sequence of rock layers.
21. Archeological section; vertical plane and cross-section of the ground to view its profile and stratigraphy; part of an archeological sequence.
22. Angle section, L-section, angle iron, steel angle, slotted angle.
23. Philippines A class in a school; a group of students in a regularly scheduled meeting with a teacher in a certain school year or semester or school quarter year.

Similar: sectio, division, part, slice, piece, snippet · Opposite: whole

verb sections · sectioning · sectioned

1. transitive To cut, divide or separate into pieces. Overlap spans and neutral sections have been provided at intervals along the line, which is thus sectioned electrically, not only at the feeder station and track sectioning cabins, but also by switches at certain overlap spans.
2. transitive To reduce to the degree of thinness required for study with the microscope.
3. Australia, New Zealand, UK, transitive To commit (a person) to a hospital for mental health treatment as an involuntary patient. So called after various sections of legal acts regarding mental health. Tribunals were set up as watchdogs in cases of compulsory detention (sectioning). […] Informal patients, however, could be sectioned, and this was often a fear of patients once they were in hospital.

   Similar: schedule

4. transitive To perform a cesarean section on (someone). "But if she's gone into active labour she could be bleeding massively and you may have to section her there and then."