Word.ws English Dictionary

Poincaré disk

Poincaré disk noun: the hyperbolic plane, viewed as a disk so that Euclidean circles and lines Euclidean-perpendicular to the disk's surface are hyperbolic lines.

poincaré disk: the hyperbolic plane, viewed as a disk so that Euclidean circles and lines Euclidean-perpendicular...
Image: Jean-Christophe BENOIST, CC BY 3.0, via Wikimedia Commons

Noun

Poincaré disk (plural Poincaré disks)

  1. The hyperbolic plane, viewed as a disk so that Euclidean circles and lines Euclidean-perpendicular to the disk's surface are hyperbolic lines.

Forms of Poincaré disk

pluralPoincaré disks
alternative formPoincaré disc

Origin of Poincaré disk

After Henri Poincaré.

Questions about Poincaré disk

What does Poincaré disk mean?
Poincaré disk means the hyperbolic plane, viewed as a disk so that Euclidean circles and lines Euclidean-perpendicular to the disk's surface are hyperbolic lines.
What part of speech is Poincaré disk?
Poincaré disk is a noun.
What is the plural of Poincaré disk?
The plural of Poincaré disk is Poincaré disks.

Words near Poincaré disk in the dictionary

  1. Poincaré ball
  2. Poincaré balls
  3. Poincaré conjecture
  4. Poincaré disc
  5. Poincaré discs
  6. Poincaré disk
  7. Poincaré disks
  8. Poincaré map
  9. Poincaré maps
  10. Poincaré recurrence time
  11. Poincaré recurrence times

Source and license

Adapted from Wiktionary: Poincaré disk (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.

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Cite this entry: “Poincaré disk.” Word.ws, https://word.ws/poincar%C3%A9_disk. Based on Wiktionary, CC BY-SA 4.0.