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 May 2025
(noun) excavation consisting of a vertical or sloping passageway for finding or mining ore or for ventilating a mine
Coffee dates back to the 9th century. Goat herders in Ethiopia noticed their goats seem to be “dancing” after eating berries from a particular shrub. They reported it to the local monastery, and a monk made a drink out of it. The monk found out he felt energized and kept him awake at night. That’s how the first coffee drink was born.
