Definitions for quaternionkwəˈtɜr ni ən
Random House Webster's College Dictionary
qua•ter•ni•onkwəˈtɜr ni ən(n.)
a group or set of four persons or things.
a generalization of a complex number to four dimensions with three different imaginary units in which a number is represented as the sum of a real scalar and three real numbers multiplying each of the three imaginary units.
Origin of quaternion:
1350–1400; ME quaternioun < LL quaterniō= L quatern(ī) four at a time +-iō -ion
four, 4, IV, tetrad, quatern, quaternion, quaternary, quaternity, quartet, quadruplet, foursome, Little Joe(noun)
the cardinal number that is the sum of three and one
A group or set of four people or things.
A four-dimensional hypercomplex number that consists of a real dimension and 3 imaginary ones (i, j, k) that are each a square root of -1. They are commonly used in vector mathematics and in calculating the rotation of three-dimensional objects.
the number four
a set of four parts, things, or person; four things taken collectively; a group of four words, phrases, circumstances, facts, or the like
a word of four syllables; a quadrisyllable
the quotient of two vectors, or of two directed right lines in space, considered as depending on four geometrical elements, and as expressible by an algebraic symbol of quadrinomial form
to divide into quaternions, files, or companies