quaternion
0 antonyms and opposites of quaternion, grouped by meaning.
Noun — A group or set of four people or things.
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Etymology
From Middle English quaterniǒun, from Late Latin quaterniō, from quaternī (“four each”) + -iō, from quater (“four times”). Doublet of kern. The mathematics sense was coined by Irish mathematician and astronomer William Rowan Hamilton in 1843.
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