Definitions of quaternion [əˈtɜr ni ən]

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Definition of 'quaternion'

Random House Webster's College Dictionary

1. (n.) quaternion
a group or set of four persons or things.

2. quaternion
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.

Etymology: (1350–1400; ME quaternioun < LL quaterniō= L quatern(ī) four at a time +-iō -ion)

Definition of 'quaternion'

Princeton's WordNet

1. (noun) four, 4, IV, tetrad, quatern, quaternion, quaternary, quaternity, quartet, quadruplet, foursome, Little Joe
the cardinal number that is the sum of three and one

Definition of 'quaternion'

Webster Dictionary

1. (noun) quaternion
the number four

2. (noun) quaternion
a set of four parts, things, or person; four things taken collectively; a group of four words, phrases, circumstances, facts, or the like

3. (noun) quaternion
a word of four syllables; a quadrisyllable

4. (noun) quaternion
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

5. (verb) quaternion
to divide into quaternions, files, or companies

'quaternion' - Nearby Entries
quat quatern quaternary period quaternate quaternion quaternity quatrain

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