sub·​space | \ ˈsəb-ˌspās How to pronounce subspace (audio) \

Definition of subspace

: a subset of a space especially : one that has the essential properties (such as those of a vector space or topological space) of the including space

Examples of subspace in a Sentence

Recent Examples on the Web Some causal chain of events (perhaps subspace quantum gravity mass-energy fluctuations) must have caused this particular choice of location in this particular instance. Quanta Magazine, 27 Sep. 2019 Twarock applied this concept by importing symmetry from a higher-dimensional space — in this case, from a lattice in six dimensions — into a three-dimensional subspace. Quanta Magazine, 19 July 2017 In the BDSM community, this is sometimes referred to as subspace, and loosely described as a altered state of consciousness as the result of an intense power play scenario. Karley Sciortino, Vogue, 21 June 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'subspace.' 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 subspace

1907, in the meaning defined above

Keep scrolling for more

Learn More About subspace

Time Traveler for subspace

Time Traveler

The first known use of subspace was in 1907

See more words from the same year

Dictionary Entries Near subspace

subsonic flow



See More Nearby Entries 

Statistics for subspace

Cite this Entry

“Subspace.” Dictionary, Merriam-Webster, Accessed 28 Sep. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

More from Merriam-Webster on subspace Encyclopedia article about subspace


Test Your Vocabulary

Difficult Spelling Words Quiz

  • alphabet pasta spelling help
  • Which is the correct spelling?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

Love words? Need even more definitions?

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