quantum
English
Etymology
From Late Latin quantum, noun use of neuter form of Latin quantus (“how much”).
Pronunciation
- (Received Pronunciation) IPA(key): /ˈkwɒntəm/
- (General American) IPA(key): /ˈkwɑntəm/
Note: in General American, the enunciated form is more common when the word is used on its own; but in connected speech, when it is used as a modifier (as in quantum mechanics), the flapped form is more common.
Noun
quantum (plural quanta)
- (now chiefly South Asia) The total amount of something; quantity. [from 17th c.]
- Burke
- without authenticating […] the quantum of the charges
- 1749, Henry Fielding, Tom Jones, Folio Society 1973, p. 416:
- The reader will perhaps be curious to know the quantum of this present, but we cannot satisfy his curiosity.
- 1997, Kiran Nagarkar, Cuckold, HarperCollins 2013, p. 375:
- Otherwise I will have given the lie to my maxim that whether you work eight or twenty hours, the quantum of work that gets done on a normal day is the same.
- 2008, The Times of India, 21 May 2008, :
- The Congress's core ministerial panel on Friday gave its green signal to raising motor fuel prices but the quantum of increase emerged as a hitch.
- Burke
- The amount or quantity observably present, or available. [from 18th c.]
- 1979, John Le Carré, Smiley's People, Folio Society 2010, p. 96:
- Each man has only a quantum of compassion, he argued, and mine is used up for the day.
- 1999, Joyce Crick, translating Sigmund Freud, The Interpretation of Dreams, Oxford 2008, p. 34:
- The dream of flying, according to Strümpell, is the appropriate image used by the psyche to interpret the quantum of stimulus [transl. Reizquantum] proceeding from the rise and fall of the lungs when the cutaneous sensation of the thorax has simultaneously sunk into unconsciousness.
- 1979, John Le Carré, Smiley's People, Folio Society 2010, p. 96:
- (physics) The smallest possible, and therefore indivisible, unit of a given quantity or quantifiable phenomenon. [from 20th c.]
- 2002, David C Cassidy et al., Understanding Physics, Birkhauser 2002, p. 602:
- The quantum of light energy was later called a photon.
- 2002, David C Cassidy et al., Understanding Physics, Birkhauser 2002, p. 602:
- (mathematics) A definite portion of a manifoldness, limited by a mark or by a boundary.
- (Can we find and add a quotation of William Kingdon Clifford to this entry?)
- (law) A brief document provided by the judge, elaborating on a sentencing decision.
- (computing) The amount of time allocated for a thread to perform its work in a multithreaded environment.
Related terms
Translations
quantity
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indivisible unit of a given quantity
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Adjective
quantum (not comparable)
- Of a change, sudden or discrete, without intermediate stages.
- (informal) Of a change, significant.
- (physics) Involving quanta, quantum mechanics or other aspects of quantum physics.
- 2012 January 1, Michael Riordan, “Tackling Infinity”, in American Scientist, volume 100, number 1, page 86:
- Some of the most beautiful and thus appealing physical theories, including quantum electrodynamics and quantum gravity, have been dogged for decades by infinities that erupt when theorists try to prod their calculations into new domains. Getting rid of these nagging infinities has probably occupied far more effort than was spent in originating the theories.
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- (computing theory) Relating to a quantum computer.
Derived terms
- quantum algorithm
- quantum bit
- quantum bogodynamics
- quantum brain dynamics
- quantum calculus
- quantum cascade laser
- quantum channel
- quantum chaos
- quantum chemistry
- quantum chromodynamics
- quantum circuit
- quantum computer
- quantum computing
- quantum cryptography
- quantum darwinism
- quantum decoherence
- quantum degeneracy
- quantum dense coding
- quantum dot
- quantum effect device
- quantum efficiency
- quantum electrochemistry
- quantum electrodynamics
- quantum electronics
- quantum entanglement
- quantum field theory
- quantum fingerprinting
- quantum flavordynamics
- quantum fluctuation
- quantum gate
- quantum gauge theory
- quantum geometry
- quantum gravity
- quantum group
- quantum gyroscope
- quantum Hall effect
- quantum harmonic oscillator
- quantum heterostructure
- quantum history
- quantum hydrodynamics
- quantum immortality
- quantum indeterminacy
- quantum inequality
- quantum information
- quantum jump
- quantum leap
- quantum level
- quantum libet
- quantum limit
- quantum link
- quantum mechanics
- quantum network
- quantum neural network
- quantum number
- quantum ontology
- quantum operation
- quantum optics
- quantum phase transition
- quantum physics
- quantum programming
- quantum psychology
- quantum randomness
- quantum register
- quantum scalar field
- quantum solvent
- quantum sort
- quantum state
- quantum statistical mechanics
- quantum suicide
- quantum superposition
- quantum teleportation
- quantum theory
- quantum tomography
- quantum valebant
- quantum vibration
- quantum virtual machine
- quantum waveform generator
- quantum well
- quantum wire
- quantum yield
- quantum Zeno effect
Translations
significant (of a change)
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involving quanta
French
Pronunciation
- IPA(key): /kɑ̃.tɔm/, /kwɑ̃.tɔm/
Further reading
- “quantum” in le Trésor de la langue française informatisé (The Digitized Treasury of the French Language).
Latin
Pronunciation
- (Classical) IPA(key): /ˈkʷan.tum/, [ˈkʷan.tũ]
Audio (Classical) (file)
Adjective
quantum
References
- quantum in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
- quantum in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
- quantum in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition, 1883–1887)
- quantum in Gaffiot, Félix (1934) Dictionnaire Illustré Latin-Français, Hachette
- Carl Meissner; Henry William Auden (1894) Latin Phrase-Book, London: Macmillan and Co.
- (ambiguous) as far as I can guess: quantum ego coniectura assequor, auguror
- (ambiguous) as far as I know: quantum scio
- (ambiguous) I am not dissatisfied with my progress: non me paenitet, quantum profecerim
- (ambiguous) to take only enough food to support life: tantum cibi et potionis adhibere quantum satis est
- (ambiguous) as far as I can guess: quantum ego coniectura assequor, auguror
Novial
Portuguese
Alternative forms
- quântum (rare)
Noun
quantum m (plural quanta or quantuns (uncommon))
Related terms
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