QUATERNION


Meaning of QUATERNION in English

n.1 a set of four.

2 Math. a complex number of the form w + xi + yj + zk, where w, x, y, z are real numbers and i, j, k are imaginary units that satisfy certain conditions.

Etymology: ME f. LL quaternio -onis (as QUATERNARY)

Oxford English vocab.      Оксфордский английский словарь.