ket (plural kets)
(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 , might be represented by a particular column vector. Its corresponding bra, , would then be represented by the row vector which is the transpose conjugate of that column vector.
ket (countable and uncountable, plural kets)
(Northern England) Carrion; any filth.
(Northumbria) Sweetmeats.
(Geordie) A sweet, treat or candy.
Abbreviation.
ket (uncountable)
(colloquial) ketamine
ket (uncountable)
(Scotland) matted wool
Ket (plural Kets or Ket)
A member of a people of Krasnoyarsk Krai in Central Siberia, Russia.
Ket
The Yeniseian language of this people.
Source: Wiktionary
Ket, n. Etym: [Icel. kjöt flesh; akin to Sw. kött, Dan. kjöd.]
Definition: Carrion; any filth. [Prob. Eng.] Halliwell.
Source: Webster’s Unabridged Dictionary 1913 Edition
2 July 2025
(noun) getting something back again; “upon the restitution of the book to its rightful owner the child was given a tongue lashing”
According to Guinness World Records, on 25 September 2016, the Birla Institute of Management Technology (India) in Uttar Pradesh, India, constructed the largest coffee cups pyramid consisting of 23,821 cups. They used paper takeaway coffee cups to build the pyramid.
