Found in the following dictionaries
Enable (Words with friends)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)
"Quaternion" Definition
noun
A set of four persons or items.
Source: American Heritage Dictionary
Mathematics Any number of the form a + bi + cj + dk where a, b, c, and d are real numbers, ij = k, i2 = j2 = -1, and ij = -ji. Under addition and multiplication, quaternions have all the properties of a field, except multiplication is not commutative.
Source: American Heritage Dictionary
A set of four parts, things, or persons.
Source: Merriam-Webster
Any of a set of numbers that comprise a four-dimensional vector space with a basis consisting of the real number 1 and three imaginary units that follow special rules of multiplication, and that are used especially in computer graphics, robotics, and animation to rotate objects in three dimensions.
Source: Merriam-Webster
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