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

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, "The Illuminating Geometry of Viruses," 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, "Sex, the Solstice, and the Single Girl," 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.

First Known Use of subspace

1907, in the meaning defined above

Keep scrolling for more

Learn More about subspace

Statistics for subspace

Look-up Popularity

Time Traveler for subspace

The first known use of subspace was in 1907

See more words from the same year

More from Merriam-Webster on subspace

Rhyming Dictionary: Words that rhyme with subspace Encyclopedia article about subspace

Comments on subspace

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


one from the Upper Peninsula of Michigan

Get Word of the Day daily email!

Test Your Vocabulary

Musical Words Quiz

  • gramophone
  • Which word describes a musical performance marked by the absence of instrumental accompaniment?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

Word Winder's CrossWinder

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!