ket

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See also: két and kết

English[edit]

Pronunciation[edit]

Etymology 1[edit]

From bra-ket notation invented by Paul Dirac.

Noun[edit]

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Wikipedia

ket (plural kets)

  1. (physics) A vector, in Hilbert space, especially as representing the state of a quantum mechanical system; the complex conjugate of a bra; a ket vector. Symbolised by |...〉.
    A particular ket, say |A\rangle, might be represented by a particular column vector. Its corresponding bra, \langle A|, would then be represented by the row vector which is the transpose conjugate of that column vector.

Etymology 2[edit]

Compare Icelandic kjöt (flesh); akin to Swedish kött and Danish kjöd. The use of the term ket for "candy" or "sweets" probably derived from its use to describe sweet meats or as a deterrent to children.

Noun[edit]

ket (plural kets)

  1. (Northern England) Carrion; any filth.
  2. (Northumbrian) Sweetmeats.
  3. (Geordie) A sweet, treat or candy.

References[edit]

Etymology 3[edit]

Abbreviation.

Noun[edit]

ket (uncountable)

  1. (colloquial) ketamine

Breton[edit]

Pronunciation[edit]

  • IPA(key): /ked/ before a vowel.
  • IPA(key): /ke/ before a consonant.

Adverb[edit]

ket

  1. not
    N'ouzon ket petra eo. — I don't know what it is.

Usage notes[edit]

Together with ne: ne ... ket. This is the same structure as French ne ... pas.


Dutch[edit]

Noun[edit]

ket m (plural ketten, diminutive ketje n)

  1. (Belgium, dialect) a kid
  2. (Belgium, dialect) a young guy

Derived terms[edit]


Icelandic[edit]

Alternative forms[edit]

Pronunciation[edit]

Noun[edit]

ket n (genitive singular kets, no plural)

  1. (regional, dated) meat

Declension[edit]


Lojban[edit]

Rafsi[edit]

ket

  1. rafsi of ketco.