# topology

[tuh-pol-uh-jee]

- the study of those properties of geometric forms that remain invariant under certain transformations, as bending or stretching.
- Also called point set topology. the study of limits in sets considered as collections of points.
- a collection of open sets making a given set a topological space.

## Origin of topology^{}

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Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

## Examples from the Web for topology

### Historical Examples

#### “Fade is a function of geography and topology,” the graybeard said quietly.

Someone Comes to Town, Someone Leaves Town</p>Cory Doctorow

# topology

- the branch of mathematics concerned with generalization of the concepts of continuity, limit, etc
- a branch of geometry describing the properties of a figure that are unaffected by continuous distortion, such as stretching or knottingFormer name: analysis situs
- maths a family of subsets of a given set S, such that S is a topological space
- the arrangement and interlinking of computers in a computer network
- the study of the topography of a given place, esp as far as it reflects its history
- the anatomy of any specific bodily area, structure, or part

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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## Word Origin and History for topology

Online Etymology Dictionary, © 2010 Douglas Harper

# topology

[tə-pŏl′ə-jē]

- The mathematical study of the geometric properties that are not normally affected by changes in the size or shape of geometric figures. In topology, a donut and a coffee cup with a handle are equivalent shapes, because each has a single hole.

The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.