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English definition of “section”

section

noun uk   /ˈsek.ʃən/ us  

section noun (PART)

B1 [C] one of the parts that something is divided into: the sports section of the newspaper the tail section of an aircraft Does the restaurant have a non-smoking section? The poorest sections of the community have much worse health. He was charged under section 17 of the Firearms Act (= according to that part of the law).

section noun (CUT)

[C or U] specialized medical a cut made in part of the body in an operation [C] specialized medical a caesarean (section) [C] specialized biology a very thin slice of a part of an animal, plant, or other object made in order to see its structure: Each section is mounted on a slide and examined under the microscope. [C] specialized architecture, geology, engineering a drawing or model that shows the structure of something by cutting part of it away: This vertical section of the soil shows four basic soil layers. [C] the shape of a flat surface that is produced when an object is cut into separate pieces in section showing what something would look like if the surface was cut away and you could see inside: The first diagram is a view of the shop from the street, and the second shows it in section.

section

verb [T] uk   /ˈsek.ʃən/ UK us  
to officially force someone who has mental health problems to stay in a hospital and receive treatment because they might harm themselves or other people: He was sectioned under section 4 of the Mental Health Act.
(Definition of section from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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