to·​po·​log·​i·​cal | \ ˌtä-pə-ˈlä-ji-kəl How to pronounce topological (audio) \

Definition of topological

1 : of or relating to topology
2 : being or involving properties unaltered under a homeomorphism continuity and connectedness are topological properties

Keep scrolling for more

Other Words from topological

topologically \ ˌtä-​pə-​ˈlä-​ji-​k(ə-​)lē How to pronounce topologically (audio) \ adverb

Examples of topological in a Sentence

Recent Examples on the Web

Helium three, at these low temperatures, forms a special kind of superfluid, called a topological superfluid. Chris Lee, Ars Technica, "Magnetic helium makes superfluid time crystal," 2 June 2018 So, no one was exactly sure if a topological insulator laser could exist. Chris Lee, Ars Technica, "Many rings, not one, create a laser to confound us all," 2 Feb. 2018 The research marks the first release of data from PolarGAP, which aims to fill in topological information about the area around the South Pole. David Freeman /, NBC News, "Vast hidden canyons and mountain ranges discovered in Antarctica," 26 May 2018 That property makes topological qubits attractive for quantum computers. Neil Savage, Scientific American, "What Are the Limits of Manipulating Nature?," 8 May 2018 Physicists have also observed topological protection in electromagnetic waves. Davide Castelvecchi, Scientific American, "Physicists Harness Twisted Mathematics to Make Powerful Laser," 5 Feb. 2018 Microsoft's quantum computing efforts are built around a concept called a topological qubit. Peter Bright, Ars Technica, "Microsoft brings its quantum dev kit to macOS, Linux; new kind of qubit this year," 26 Feb. 2018 These singularities are mathematical holes and also arise in topological insulators. George Musser, Science | AAAS, "Waves that drive global weather patterns finally explained, thanks to inspiration from bagel-shaped quantum matter," 5 Oct. 2017 The number of extra qubits varies according both to the algorithm and the kind of quantum machine being used; in principle, topological qubits will need far fewer error correcting qubits than other quantum computer designs. Peter Bright, Ars Technica, "Microsoft makes play for next wave of computing with quantum computing toolkit," 25 Sep. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'topological.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of topological

1715, in the meaning defined at sense 1

Keep scrolling for more

Learn More about topological

Statistics for topological

Look-up Popularity

Time Traveler for topological

The first known use of topological was in 1715

See more words from the same year

More from Merriam-Webster on topological

Rhyming Dictionary: Words that rhyme with topological

Comments on topological

What made you want to look up topological? Please tell us where you read or heard it (including the quote, if possible).


to take the place or position of

Get Word of the Day daily email!

Test Your Vocabulary

Words for Summer: A Quiz

  • a closeup of a sunflower
  • Which of the following words means “of or relating to summer”?
Spell It

Can you spell these 10 commonly misspelled words?


Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

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