cross ratio


noun Geometry.

a ratio relating four points in the real or complex plane.

Nearby words

  1. cross one's mind,
  2. cross over,
  3. cross press,
  4. cross product,
  5. cross protection,
  6. cross reaction,
  7. cross reference,
  8. cross relation,
  9. cross river,
  10. cross river gorilla

Origin of cross ratio

First recorded in 1880–85

Also called anharmonic ratio.

Related formscross-ra·ti·o, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for cross ratio