Speakur

Word Pronunciation & Dictionary

cross-ratio

Word Rarity Uncommon

Frequency: 4.28 in modern English

Syllables
cross-ra-tio
IPA
12
Scrabble Score
10
Letters
3
Syllables
7
Unique Chars

Meaning

noun

A special number associated with an ordered quadruple of collinear points, particularly points on a projective line, and preserved by the fractional linear transformations.

Etymology

From cross- + ratio.

Inflected Forms

cross-ratios (plural) crossratio (alternative)

Synonyms

anharmonic ratio double ratio

Questions

What does cross-ratio mean?
A special number associated with an ordered quadruple of collinear points, particularly points on a projective line, and preserved by the fractional linear transformations.
Where does cross-ratio come from?
From cross- + ratio.

How to pronounce cross-ratio

  1. Open the pronunciation page — Open the Speakur entry for “cross-ratio”.
  2. Read the phonetic spelling — Read the IPA spelling () so you know which sounds to aim for.
  3. Play the audio — Click Play to hear reference audio for “cross-ratio”.
  4. Repeat and practice — Say “cross-ratio” aloud, matching stress and vowels until it feels natural.