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# Quaternion

[kwuh-tur-nee-uh n] /kwəˈtɜr ni ən/

noun
1.
a group or set of four persons or things.
2.
Bookbinding. four gathered sheets folded in two for binding together.
3.
Mathematics.

/kwəˈtɜːnɪən/
noun
1.
(maths) a generalized complex number consisting of four components, x = x0 + x1i + x2j + x3k, where x, x0…x3 are real numbers and i² = j² = k² = –1, ij = –ji = k, etc
2.
another word for quaternary (sense 5)
quaternion
(kwə-tûr’nē-ən)
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 that multiplication is not commutative.

a band of four soldiers. Peter was committed by Herod to the custody of four quaternions, i.e., one quaternion for each watch of the night (Acts 12:4). Thus every precaution was taken against his escape from prison. Two of each quaternion were in turn stationed at the door (12:6), and to two the apostle was chained according to Roman custom.

Tagged:

• Quathlamba

[kwaht-lahm-buh] /kwɑtˈlɑm bə/ noun 1. . /kwɑːtˈlɑːmbɑː/ noun 1. the Sotho name for Drakensberg

• Quaternity

[kwuh-tur-ni-tee] /kwəˈtɜr nɪ ti/ noun, plural quaternities. 1. a group or set of four. /kwəˈtɜːnɪtɪ/ noun (pl) -ties 1. a group of four, esp a concept of God as consisting of four persons

• Quatrain

[kwo-treyn] /ˈkwɒ treɪn/ noun 1. a stanza or poem of four lines, usually with alternate rhymes. /ˈkwɒtreɪn/ noun 1. a stanza or poem of four lines, esp one having alternate rhymes n. 1580s, from Middle French quatrain “four-line stanza” (16c.), from Old French quatre “four,” from Latin quattuor “four” (see four).

• Quatorze

[kuh-tawrz; French ka-tawrz] /kəˈtɔrz; French kaˈtɔrz/ noun, plural quatorzes [kuh-tawr-ziz; French ka-tawrz] /kəˈtɔr zɪz; French kaˈtɔrz/ (Show IPA). Piquet. 1. a set of four cards of the same denomination, aces, kings, queens, jacks, or tens, scoring 14 points. in French terms, “fourteen,” from French quatorze, from Latin quatuordecim (source also of Italian quattordici), from quatuor […]

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