topology

noun

to·​pol·​o·​gy tə-ˈpä-lə-jē How to pronounce topology (audio)
tä-
plural topologies
1
: topographic study of a particular place
specifically : the history of a region as indicated by its topography
2
a(1)
: a branch of mathematics concerned with those properties of geometric configurations (such as point sets) which are unaltered by elastic deformations (such as a stretching or a twisting) that are homeomorphisms
(2)
: the set of all open subsets of a topological space
b
: configuration
topology of a molecule
topology of a magnetic field
topologist noun

Examples of topology in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
By integrating topology optimization with 3D printing, the AECC is developing a new manufacturing pathway. Aman Tripathi, Interesting Engineering, 14 Nov. 2025 This new perspective allowed mathematicians to rigorously explore higher-dimensional spaces — leading to the birth of modern topology, a field dedicated to the study of mathematical spaces like manifolds. Quanta Magazine, 3 Nov. 2025 Each asteroid is different, Makadia's team emphasized, so finding the ideal spot for a successful deflection involves looking at the space rock's shape, rotation, mass and surface topology (its distribution of hills and craters). Elizabeth Howell, Space.com, 10 Sep. 2025 Knot theory is a branch of topology that has surprisingly practical applications, such as understanding how proteins coil DNA and how molecular structures remain stable. Max Springer, Scientific American, 2 Sep. 2025 See All Example Sentences for topology

Word History

Etymology

International Scientific Vocabulary

First Known Use

1850, in the meaning defined at sense 1

Time Traveler
The first known use of topology was in 1850

Cite this Entry

“Topology.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/topology. Accessed 19 Nov. 2025.

Kids Definition

topology

noun
to·​pol·​o·​gy tə-ˈpäl-ə-jē How to pronounce topology (audio)
: a branch of mathematics concerned with the properties of geometric figures that do not change when the figure is twisted or stretched in certain ways
topological
ˌtäp-ə-ˈläj-i-kəl
ˌtōp-
adjective
topologist noun

Medical Definition

topology

noun
to·​pol·​o·​gy tə-ˈpäl-ə-jē, tä- How to pronounce topology (audio)
plural topologies
1
2
: configuration sense 1
the topology of a molecule
topological adjective
also topologic

More from Merriam-Webster on topology

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!