Skip to definition.
Get the FREE one-click dictionary software for Windows or the iPhone/iPad and Android apps


Noun: quaternion  kwu'tur-nee-un
  1. The cardinal number that is the sum of three and one
    - four, 4, IV, tetrad, quatern, quaternary, quaternity, quartet, quadruplet, foursome, Little Joe

Derived forms: quaternions

Type of: digit, figure

Encyclopedia: Quaternion