noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   Any of the numbers w+xi+yj+zk! where w, x, y, and z are complex numbers and the elements of {1, i, j, k} multiply as in the quaternion group.

Etymology

From bi- + quaternion.

Related phrases

complex number

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.