section

section

1. Transport the section of a railway track that is maintained by a single crew or is controlled by a particular signal box

2. Archit a representation of a portion of a building or object exposed when cut by an imaginary vertical plane so as to show its construction and interior

3. Geometry

a. a plane surface formed by cutting through a solid

b. the shape or area of such a plane surface

4. Surgery any procedure involving the cutting or division of an organ, structure, or part, such as a Caesarian section

5. a thin slice of biological tissue, mineral, etc., prepared for examination by a microscope

6. a segment of an orange or other citrus fruit

7. Austral and NZ a fare stage on a bus, tram, etc.

8. Music

a. an extended division of a composition or movement that forms a coherent part of the structure

b. a division in an orchestra, band, etc., containing instruments belonging to the same class

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section [′sek·shən]

(civil engineering)

A piece of land usually 1 mile square (640 acres or approximately 2.58999 square kilometers) with boundaries conforming to meridians and parallels within established limits; 1 of 36 units of subdivision of a township in the U.S. Public Land survey system.

(communications)

Each individual transmission span in a radio relay system; a system has one more section than it has repeaters.

(geology)

An inclined or vertical surface that is uncovered either naturally (as a sea cliff or stream bank) or artificially (as a strip mine or road cut) through a part of the earth's crust.

A description or scale drawing of the successive rock units or geologic structures shown by the exposed surface, or their appearance if cut through by any intersecting plane.

columnar section geologic section type section thin section

(mathematics)

For a polyhedral angle, the polygon formed by the intersection of the faces of the angle with a plane that does not pass through the vertex.

plane section