Word.ws English Dictionary

homotopy

/həˈmɑtəpi/

homotopy noun: a continuous deformation of one continuous function or map to another. Also the ellipsis of homotopy theory.

homotopy: a continuous deformation of one continuous function or map to another
Image: Jim.belk, CC0, via Wikimedia Commons

Noun

homotopy (countable and uncountable, plural homotopies)

  1. A continuous deformation of one continuous function or map to another.
    • The concept of homotopy represents a formalisation of the intuitive idea of a smooth deformation of one curve into another.
    • An integer M is called an exponent for the torsion of an abelian group G if M * (torsion of G) = 0. We say that M is a homotopy exponent for a space X if M is an exponent for πₖ (X) for all k.1998, Paul Sellick, “Space Exponents for Loop Spaces of Spheres”, in William G. Dwyer, editor, Stable and Unstable Homotopy, American Mathematical Society, page 279
  2. (uncountable) The relationship between two continuous functions where homotopy from one to the other is evident.
  3. A theory associating a system of groups with each topological space.
  4. A system of groups associated with a topological space.

Also used as

homotopy is also the ellipsis of homotopy theory.

homotopy meaning in Persian and Vietnamese

homotopy in Persian

(topology) continuous deformation of one continuous function to another
هموتوپی hemotopi

homotopy in Vietnamese

(topology) continuous deformation of one continuous function to another
đồng luân

Forms of homotopy

pluralhomotopies

Origin of homotopy

From Ancient Greek ὁμός (homós, “same, similar”) + τόπος (tópos, “place”); earliest known use in print in 1922, Oswald Veblen, Analysis Situs.

Words formed from homotopy

Phrases with homotopy

Questions about homotopy

What does homotopy mean?
Homotopy means a continuous deformation of one continuous function or map to another.
What is homotopy in Persian?
Homotopy in Persian is هموتوپی (hemotopi). See Homotopy meaning in Persian.
What part of speech is homotopy?
Homotopy is a noun.
How do you pronounce homotopy?
Homotopy is pronounced /həˈmɑtəpi/ (US).
What is the plural of homotopy?
The plural of homotopy is homotopies.

Words near homotopy in the dictionary

  1. homotopically
  2. homotopicity
  3. homotopies
  4. homotoping
  5. homotops
  6. homotopy
  7. homotopy theories
  8. homotopy theory
  9. homotosis
  10. homotoxicology
  11. homotoxin

Source and license

Adapted from Wiktionary: homotopy (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Pronunciation audio from Wikimedia Commons, each file under its own free license: LL-Q1860 (eng)-Knabrupt-homotopy (antepenult).wav.

Cite this entry: “homotopy.” Word.ws, https://word.ws/homotopy. Based on Wiktionary, CC BY-SA 4.0.